Halachically Speaking (Special Edition): Bedikas Chametz

Written by Rabbi Moishe Dovid Lebovits of KOF-K Kosher Supervision

Before performing the bedika, one should clean the house very well, thus making the bedika much easier.[1] It is the custom to wash and clean everything extremely well before the bedika.[2] The chometz should be sold to theRav before any bedika is performed.[3] Some are careful to wash their hands before they start bedikas chometz.[4] One should have hakaras hatov to his wife for all the hard work she performed in order to insure that the house is prepared properly for Pesach.

The Time To Check

It would seem that the bedika should be performed close to the biur, on the fourteenth day; however, since most people are not home during the day, the chachumim said that the bedika should be done on the night of the fourteenth. Furthermore, the bedika needs to be conducted with the light of a candle (see below) and one may see better with a candle at night.[5] Most poskim say the preferred time to check for chometz is in the beginning of the night, right after tzeis ha’chochavim.[6] Some say that the bedika time is a little before tzies ha’chochavim, when it is still day.[7] The minhag is that we follow the first opinion.[8] Those who have the custom to wait, until the time of Rabbeinu Tam, should still check before Rabbeinu Tam.[9]

Performing Melacha Before The Bedika

A half hour before the time of bedika has arrived one may not busy himself with any work.[10] This is a gezeira because there is a possibility that one will be occupied with his work, and neglect to perform the bedika.[11] If one started working, before a half hour, then he must stop once tzies ha’chochavim has arrived.[12]

Eating/Drinking Prior To The Bedika

A half hour before the zeman of performing the bedika, one may not eat a “seuda” which consists of bread or any mezonos larger than the shiur of a kebeiza.[13] If one started a seuda before the half hour, he must stop when the zeman of bedika begins.[14] One may eat a large amount of fruit,[15] while others say that it should not be eaten only before the half hour, not once tzeis arrives.[16] Drinking is also forbidden after a half hour, if it is a largeshiur.[17] However, this is only beverages that might bring one to become drunk.[18] It is permitted to drink tea or coffee.[19]

Learning Prior To The Bedika

Some say that learning may not be done a half hour before the zeman,[20] and some say that this is only forbidden once the zeman has arrived.[21] If one asks his friend (who is not learning) to remind him to do the bedika, then according to everyone, it is permitted to learn within the half hour before the bedika.[22] Some say if one is giving a shiur to the public, in shul, then he is permitted to continue learning even after the zeman has arrived, and he does not have to stop.[23] However, this is only if one is not learning so intensely into the shiur.[24] If one started learning before the half hour before the zeman, once the zeman comes he has to stop.[25] However, one is allowed to finish the inyun that he was in middle of.[26]

Maariv Before Or After The Bedika

The custom seems to be that one should daven maariv prior to performing the bedika.[27] Some say if one davens all year round at a later time (the same set time every night) on the night of the bedika he should daven before the bedika is performed.[28]

Placing The Ten Pieces Of Bread

The custom is to place ten pieces of bread, before the bedika, in order that the beracha should not have been said in vain if no actual chometz was found.[29] Some say there is no need to place the bread out, because there is no beracha l’vatala, if one does not find chometz,[30] nonetheless, the custom is to place the bread out.[31] Some say the reason for placing 10 pieces is based on kabbalah.[32] The Chok Yaakov[33] says the reason is because if one would not find any chometz, during the bedika, he would give up on his search. If one does not put out the bread it is not meachev.[34] Some say since our houses are cleaned very well before Pesach, one mustplace the bread out before the bedika.[35] The prevailing custom is that someone else (besides for the one who is performing the bedika) places the bread in different areas in the house.[36] Some have the custom that the bodekplaces the pieces of bread.[37] The Aruch Ha’shulchan says one should place the bread by different windows,[38] however, this is not the custom.[39] One should make sure not to lose any of the pieces of chometz.[40] If one did lose a piece, no new bedika is required.[41] The bread should be hard pieces so that it does not crumble.[42] If one is using soft bread then he should place the bread on a plate, tin foil or in a plastic bag.[43] The size of each piece should each be less than a k’zayis, [44] however, all the pieces together should equal a k’zayis.[45] Many people do a very superficial bedika; they search for the ten pieces of bread and conclude their search. However, this bedika is not valid and hinges on a beracha l’vatala.[46] One has to check the entire house during the bedika, and it is not sufficient to just collect the 10 pieces of bread. If one will not be home for Pesach, and he performs a bedika earlier than the fourteenth (i.e. the thirteenth), the minhag is to place the bread before performing the bedika.[47] One should hide all the chometz that he has to burn in his house and not only the chometzthat is found during the bedika.[48] One should not give children chometz after the bedika has been completed.[49]

Being Mafsik Between The Beracha And Bedika

One should not speak between the beracha and the search for the chometz,[50] even words that are related to the bedika.[51] If one spoke even one word[52] that is not related to the bedika, he has to repeat the beracha.[53] If it is something that is related to the bedika, no new beracha is required.[54] One should not wait between the beracha and the bedika longer than the span of toch k’dei dibbur.[55] If one waited longer than the allotted time, no new beracha is recited.[56]

Being Mafsik During The Bedika

When one begins the bedika process, until the bedika and bittul are completed, one should not talk, this includes divrei torah as well.[57] The reason is that one should put his whole heart into concentrating on the bedika.[58]One may talk words that are related to the bedika even l’chatcilah.[59] If one spoke words that are not related to the bedika, there is no need for a new beracha.[60] If one has to use the facilities, during the bedika, he may recite an asher yotzar.[61] In a situation where one is in middle of the bedika, and the phone rings, he may answer the phone and say he is in middle of the bedika.[62]

Wax Candle/ Flashlight/ Electric Lights

One has to search for chometz with the light of a candle.[63] The candle has to be a one wick candle.[64] It should initially be made out of wax.[65] Some say the reason for using wax is based on kabbalah.[66] A torch may not be used,[67] and a candle that is made with two wicks may not be used.[68] Some have the custom that the lights are kept on because the more light the better it is for one to find chometz.[69] Many have the custom to have the lights off during the bedika.[70] In places where it is hard to check one may use a flashlight.[71] However, the custom is to use a wax candle for the bedika,[72] therefore, one should start off using a wax candle and then he may use a flashlight, etc.[73]

Using A Feather And Spoon For The Bedika

The custom is to use a feather by the bedika to help clean any chometz that may be found.[74] The custom to use the spoon is so that if one does not find any chometz, one would be able to burn the wooden spoon.[75]However, we have the custom to place ten pieces of bread so there is no reason to use the spoon.[76] Some say the reason one should use a spoon is so that when one does the burning it should consist of burning some wood.[77]

[1] Refer to Rama 433:11, Magen Avragam 431:21, Pri Megadim Eishel Avraham 21, Machtzis Ha’shekel 21, Shulchan Aruch Harav 433:38, Ben Ish Chai Tzav 1:1, Chai Adom 119:12, Kitzur Shulchan Aruch 111:3, Sdei Chemed Chometz U’matzah 5:49:page 166, Mishnah Berurah 46, Haggada Shel Pesach Taam V’Daas page 7:5.

[2] Aruch Ha’shulchan 14.

[3] Sdei Chemed Chometz U’matzah 5:4:page 118, Shearim Metzuyanim B’halacha 111:3, Haggada Shel Pesach Taam V’Daas page 5:3:footnote 3, Bedikas Chometz U’biuro page 172, see Arzei Halevonon 2:page 17:1.

[4] Maharil page 36:2, Magen Avraham 432:1, Be’er Heitiv 1, Pri Megadim Eishel Avraham beg. of 432, Ben Ish Chai Tzav 1:13, Mishnah Berurah 2, Kaf Ha’chaim 1, Haggada Shel Pesach (M’Bais Levi ) page 28:4:1, Hilchos Chag B’Chag 51:2, Ohr L’tzyion3:7:6:footnote 6. Refer to Siddur Yaavetz 2:page 26:7. Some have the custom to wear nice clothes for the bedika (Piskei Teshuvos 431:1).

[5] Refer to Mishnah Pesachim 2a, Gemorah Pesachim 4a, Yerushalmi Pesachim 1:5, Rambam Hilchos Chometz U’matzah 2:3, Tur 431, Bach, Darchei Moshe 1, Shulchan Aruch 431:1, Levush 1, Shulchan Aruch Harav 5, Aruch Ha’shulchan 15, Refer toOtzer Ha’halachos page 42:footnote 1.

[6] Chok Yaakov 1, Mekor Chaim, Elya Rabbah 5, Taz 1, Machzik Beracha 1, Shulchan Aruch Harav 5, kuntres achron, Machzik Beracha 1, Ben Ish Chai Tzav 1:6, Chai Adom 119:7, Kitzur Shulchan Aruch 111:1, Mishnah Berurah 1, Aruch Ha’shulchan24, Kaf Ha’chaim 5, Yisroel V’hazemanim page 1:237, Hilchos Chag B’Chag page 25. If it is a time of need one may rely on the ones who hold that it may be performed before tzeis hachochavim. (Shar Ha’tzyion 1).

[7] Magen Avraham 1, Pri Megadim Eishel Avraham 1, Gra, Be’er Heitiv 1, see M.Z. 1, Aruch Ha’shulchan 25, Massei Rav 178.

[8] Refer to footnote 7.

[9] Moadim V’zemanim 4:286:page 41.

[10] Mordechai Pesachim 532, Gemorah Pesachim 4a, Tur, Shulchan Aruch 431:2, Pri Megadim Eishel Avraham 5. Some say sleeping should not be done either (Hilchos Chag B’Chag page 3:footnote 1).

[11] Refer to Magen Avraham 6, Chok Yaakov 3, Shulchan Aruch Harav 5, Chai Adom 119:7, Mishnah Berurah 5. See Ran “ossur,”

[12] Refer to Mishnah Berurah 431:12.

[13] Shulchan Aruch 431:2, see Magen Avraham 4, Taz 4, Chok Yaakov 4, Pri Megadim Eishel Avraham 4, 6, Aruch Ha’shulchan 26, if one has a shomer to remind him them one is permitted to do actions before bedika (Pri Megadim Eishel Avraham 7).

[14] Refer to Chok Yaakov 8.

[15] Bach, Taz 4, Chok Yaakov 4. Refer to Elya Rabbah 232:7.

[16] Biur Halacha “v’lo yeyuchel.”

[17] Magen Avraham 232:17.

[18] Refer to Magen Avraham 232:17, Machtzis Ha’shekel, Mishanh Berurah 35.

[19] Aruch Ha’shulchan 26, Otzer Ha’halochos page 47:footnote 15.

[20] Rosh Pesachim 1:1, Rif page 2, Shulchan Aruch 431:2, Shulchan Aruch Harav 5.

[21] Chok Yaakov 5.

[22] Refer to Elya Rabbah 8, Shulchan Aruch Harav 11, Mishnah Berurah 7, Aruch Ha’shulchan 30,

[23] Taz 2, Magen Avraham 5, Shulchan Aruch Harav 9, Shar Ha’tzyion 7. See Eishel Avraham Butchatch, refer to Yechaveh Da’as 2:59.

[24] Magen Avraham 5, Chok Yaakov 7, Elya Rabbah 8, Shulchan Aruch Harav 9-10, Mishnah Berurah 7, Otzer Ha’halochos page 51:footnote 28.

[25] Tur 431, Drisha 3, Rama 2, Shulchan Aruch Harav 6, Mishnah Berurah 10-11, see Bais Yosef , Shulchan Aruch, Aruch Ha’shulchan 29, 30 who disagree.

[26] Aruch Ha’shulchan 29.

[27] Refer to Magen Avraham 5, Pri Megadim Eishel Avraham 8, Siddur Yaavetz 2:page 26:2, Mishnah Berurah 8, Shar Ha’tzyion 11, Aruch Ha’shulchan 31, Kaf Ha’chaim 18, Moadim V’zemanim 4:286:page 41, Opinion of Horav Moshe Feinstein zt”lquoted in Horav Eider Shlita’s sefer on Hilchos Pesach 1:page 68:footnote 29, Veyalu Lo Yuvol 1:page 161:249, Orchos Rabbeinu 2:page 1:4, Bedikas Chometz U’biuro page 173, Haggadah Shel Pesach Horav Elyashiv Shlita page 36. Haggadah Shel Pesach Chazzon Ish page 19:1.

[28] Natey Gavriel Pesach 1:9:page 83 (new print).

[29] Maharil page 40:8, Bais Yosef 432, Darchei Moshe 2, Rama 432:2, Taz 4, Chai Adom 119:22, Kitzur Shulchan Aruch 111:8, Moreh V’etzbah 200:page 53, Machzik Beracha 432:8, Sdei Chemed chometz u’matzah 5:49, Kaf Ha’chaim 31. Some say the reason for placing the bread is in order not to forget to do do the bitul and sereifa on chometz the next day (Bach, Chok Yaakov 14, Elya Rabbah 2, Taamei Haminhagim 479:page 211, Lekutei Maharich page 498 new, refer to Moadim L’simcha 4:page 93 for other reasons). Many do not have this custom (Mor V’kitzia page 94, Machzik Beracha 432:8, Massei Rav page 205:footnote 5, Moadim V’zemanim 4:287, this was the custom of the Briska Rav zt”l quoted in Haggada Shel Pesach M’Bais Levi page 28:10, theChazzon Ish did not place the ten places before the bedika quoted in Haggada Shel Pesach of the Chazzon Ish page 19:2) Refer to Mivakshei Torah Nissin 5760 pages 625-635 on the whole inyun.

[30] Refer to Bais Yosef, Be’er Heitiv 8, Sharei Teshuva 3, Gra, Mishnah Berurah 13, Minhag Yisroel Torah 432:1, Opinion of Horav Shlomo Zalman Aurbach zt”l (Madanei Shlomo page 4). The Tamim Daim 29:page 11 says this minhag is a minhag for women, refer to Mekor Chaim 432, Moadim L’simcha 4:page 91).

[31] Rama ibid, Sdei Chemed chometz u’matzah 5:49:page 166, Yechaveh Da’as 5:31, Yabea Omer O.C. 9:92:2, Tzitz Eliezer 9:17:page 95-95b says there is a mekor in the Gemorah Pesachim 7b for this custom, Hilchos Chag B’Chag page 64:9, Refer toMoadim L’Simcha 4:page 92, Mivakshei Torah Nissin 5760 page 634, Haggada Shel Pesach Taam V’Daas page 7:5, Eyleh Hem Hamoadey page 52.

[32] Refer to Be’er Heitiv 8, Sefer Matamim 1:page 83:15 (new), Lekutei Maharich (new) page 498, Miyum Ha’halacha 3:93, Chazzon Ovadia Pesach 1:page 36, Moadim V’zemanim 4:287, Otzer Ha’halochos 1:page 96.

[33] 432:14.

[34] Chazzon Ovadia Pesach 1:page 36.

[35] Shar Ha’tzyion 12, Aruch Ha’shulchan 5, Yabea Omer O.C. 9:88:12, Haggadah Shel Pesach Horav Elyashiv Shlita page 16.

[36] Sdei Chemed Chometz U’matzah 5:49:page 166, Kovetz Bais Aaron V’yisroel 73:page 105:4, Haggadah Shel Pesach Horav Shlomo Zalman Aurbach zt”l page 279, Natei Gavriel 8:5 (new), Piskei Teshuvos 432:4, Otzer Ha’halochos 1:page 96, Bedikas Chometz U’biuro page 171, Shevus Yitzchok Pesach page 64. This is the custom of Horav Yisroel Belsky Shlita. One should write down where each piece of bread was placed (Natei Gavriel 8:8 new). Refer to Siddur Pesach K’hilchoso 13:footnote 3. Some say the wife prepares the pieces of bread (Teshuvos V’’hanhugos 3:115).

[37] Haggadah Shel Pesach Horav Elyashiv Shlita page 36. Orchos Rabbeinu Pesach 2:5. The Terumas Hadeshen 133 seems to say you should place the pieces out by yourself.

[38] 432:4, see Moadim L’simcha 4:page 97 for the reason. Some say one should place in under a cabinet therefore he would check there during the bedika (Haggada Shel Pesach Horav Elyashiv Shlita) page 15.

[39] Mevakshei Torah Nissin 5760:page 625. One should place them in ten different places (Bedikas Chometz U’biuro page 171:footnote 14).

[40] Mishnah Berurah 432:13. One should count the pieces he finds in order to prevent losing any pieces (Bedikas Chometz U’biuro page 172).

[41] Refer to Shulchan Aruch 434:1, Magen Avraham end of 432, Sharei Teshuva 432:7, Bedikas Chometz U’biuro page 172:footnote 16, Yechaveh Da’as 5:31

[42] Magen Avraham 6, Chok Yaakov 13, Elya Rabbah 2, Mekor Chaim 432, Mishnah Berurah 12, Aruch Ha’shulchan 4, Kaf Ha’chaim 29, Lekutei Maharich page 498 (new).

[43] Refer to Yechavah Da’as 5:31, Miyum Ha’Halacha ibid, Haggada Shel Pesach Horav Elyashiv Shlita page 36, Hilchos Chag B’Chag page 64:9, Ohr L’tzyion 3:7:6:footnote 6.

[44] Machzik Beracha 432:9, Sdei Chemed Chometz U’matzah 5:49:page 165, Mor V’ohalos berochos 18, Kaf Ha’chaim 30, Chazzon Ovadia Pesach 1:pages 36-38.

[45] Orchos Chaim Spinka 432:8, Shearim Metzuyanim B’halacha 11:9.

[46] Refer to Machzik Beracha 432:18, Sharei Binah 19, Kitzur Shulchan Aruch 111:8, Lekutei Maharich page 98 (new), Taam V’Daas Meikeitz page 233 (old), Haggada Shel Pesach Horav Shlomo Zalman Aurbach zt”l page 280, Mivakshei Torah Nissin5760 pages 560-561, Bedikas Chometz U’biuro page 127.

[47] Refer to Kinyan Torah 2:82, Minchas Yitzchok 8:35, Divrei Shalom 3:108, Haggada Shel Pesach Horav Elyashiv Shlita pages 33-34. This is the opinion of Horav Yisroel Belsky Shlita.

[48] Bach, Maharil page 41:9, Magen Avraham 434:1, Mishnah Berurah 434:2, 4, Biur Halacha “oh yanichenu,” Shar Ha’tzyion 4, Mivakshei Torah Nissin 5760: pages 560-561.

[49] Bedikas Chometz U’biuro pages 184-185, refer to Ha’kotton V’hilchosuv 1:22:3:footnote 7.

[50] Levush 432:1, Ben Ish Chai Tzav 1:5, Aruch Ha’shulchan 2, see Otzer Ha’halochos page 71.

[51] Refer to Rosh Pesachim 1:10, Shulchan Aruch 432:1, Shulchan Aruch Harav 6, Kaf Ha’chaim 16, Mamer Mordechai 3, see Rama 167:6. If it is not possible to avoid talking then you may (Shulchan Aruch Harav 6).

[52] Pri Megadim Eishel Avraram 3, Kaf Ha’chaim 15, Mishnah Berurah 167:36, 206:12, Otzer Ha’halochos pages 71-72:footnote 4.

[53] Magen Avraham 3, Chok Yaakov 7, Mishnah Berurah 5, see Taz 3, Otzer Ha’halochos page 72:footnote 5.

[54] Magen Avraham 3, Chai Adom 119:19, Mishnah Berurah 5, Aruch Ha’shulchan 2.

[55] Refer to Shulchan Aruch 206:3, Magen Avraham 4, Machtzis Ha’shekel, Elya Rabbah 4, Shulchan Aruch Harav 3, Nishmas Adom 5:9, Mishnah Berurah 34, Kaf Ha’chaim 10, 15, Sharei Ha’beracha 13:footnote 33. See Taz 3, Be’er Heitiv 206:2, Levush1, Aruch Ha’shulchan 206:4, Kaf Ha’chaim 206:15.

[56] Otzer Ha’halochos page 73:footnote 9.

[57] Refer to Shulchan Aruch 432:1, Levush ibid, M.Z. 3, Shulchan Aruch Harav 7, Kaf Ha’chaim 20, Aruch Ha’shulchan 2. Although the Shulchan Aruch ibid says until the bedika is over some poskim say it means until the bitul is over with (Pri Megadimibid, Kaf Ha’chaim 21, Chazzon Ovadia Pesach 1:page 44:5).

[58] Rosh ibid, Levush ibid, Aruch Ha’shulchan 2, see Taz 3 Kaf Ha’chaim 21.

[59] Maharil page 38:5, Elya Rabbah 5, Mamer Mordechai 3, Shulchan Aruch Harav 7, Mishnah Berurah 432:6, Kaf Ha’chaim 16,18, Otzer Ha’halochos page 76:footnote 26. It is permitted for one to answer amen and to thunder and lighting as well (Natei Gavriel 1:14:6, Chazzon Ovadia Pesach 1:page 45).

[60] Rosh ibid, Magen Avraham 4, Chok Yaakov 8, Shulchan Aruch Harav 7, Chai Adom 119:19, Mishnah Berurah 6.

[61] Natey Gavriel 1:14:5:footnote 8 in depth, Chazzon Ovadia Pesach 1:page 45, Haggada Shel Pesach Horav Elyashiv Shlita page 17, see Otzer Ha’halochos page 76:footnote 30 who argues.

[62] Opinion of Horav Shlomo Zalman Aurbach zt”l quoted in Mevakshei Torah 2:page 455. Refer to Natei Gavriel 1:14:7.

[63] Gemorah Pesachim 2a, Shulchan Aruch 433:1, Shulchan Aruch Harav 1, Aruch Ha’shulchan 1, Kaf Ha’chaim 1.

[64] Rama ibid.

[65] Shulchan Aruch 433:2, Shulchan Aruch Harav 8, Ben Ish Chai Tzav 1:2, Aruch Ha’shulchan 2, Chazzon Ovadia Pesach 1:page 38:2.

[66] Moadim L’simcha 4:page 101.

[67] Gemorah Pesachim 7b, Shulchan Aruch 433:2, Shulchan Aruch Harav 8, Mishnah Berurah 8, Aruch Ha’shulchan 2, Kaf Ha’chaim 11.

[68] Rama ibid, Magen Avraham 6, Shulchan Aruch Harav 10, Kaf Ha’chaim 17,19, 20. If one used a torch one needs to perform a new bedika (Magen Avraham 5, Chok Yaakov 5, Mishnah Berurah 10, Aruch Ha’shulchan 2).

[69] Custom of Horav Moshe Feinstein zt”l quoted in Horav Eider Shlita’s sefer on Hilchos Pesach 1:page 86:footnote 84, Horav Yisroel Belsky Shlita, Chazzon Ish quoted in Haggadah Shel Pesach Chazzon Ish page 19:3, Haggadah Shel Pesach Taam V’Daas page 5:2, Haggadah Shel Pesach Horav Elyashiv Shlita page 17 and 36, see Shevus Yitzchok Pesach page 34 quoted this as being the opinion of Horav Shlomo Zalman Aurbach zt”l (See Haggadah Shel Pesach of Horav Shlomo Zalman Aurbachzt”l page 279), Refer to Chazzon Ovadia ibid:page 40, Shevet Ha’Levi 1:136, Moadim L’simcha 4:page 115. Horav Elyashiv Shlita is of the opinion that a ner is only needed for the racks and crevices (Hilchos Chag B’Chag page 79).

[70] Bedikas Chometz U’biuro page 176:footnote 35 quoting this as being the custom of the Briska Rav and others, Natei Gavriel 1:17:18, Hilchos Chag B’Chag page 78:7,Otzer Ha’halochos page 116:13, Haggadah Shel Pesach Taam V’Daas page 5:2,Piskei Teshuvos page 5. If one does not have the lights off it is also fine (Otzer Ha’halochos page 116:13:footnote 32, Orchos Rabbeinu 2:page 6:2.

[71] Refer to Natei Gavriel 1:17:19, Chazzon Ovadia Pesach 1:page 138:2:footnote 13 in depth, Otzer Ha’halochos page 116:12, Horav Eider Shlita’s sefer on Hilchos Pesach page 86, Shevet Ha’Levi 1:136:page 137, Shevus Yitzchok Pesach page 35 quoted the opinion of Horav Shlomo Zalman Aurbach zt”l, see Siddur Pesach K’hilchoso page 159. In places where one cannot go with a candle i.e. under beds or in closest, then one should use a flashlight etc. (Be’er Moshe 6:K.A. 63). Horav Yisroel Belsky Shlitauses a flashlight. Refer to Yabea Omer 4:40, Bedikas Chometz U’biuro page 176:footnote 36.

[72] Hilchos Chag B’Chag page 75:5.

[73] Horav Eider Hilchos Shlita’s sefer on Hilchos Pesach page 86 in the name of Horav Aaron Kotler zt”l.

[74] Magen Avraham 433:21, Pri Megadim Eishel Avraham 433:21, Chai Adom 119:12, Mishnah Berurah 433:46, Aruch Ha’shulchan 433:14, Lekutei Maharich 3:page 498, Hilchos Chag B’Chag page 49:footnote 1.