I have never seen it printed in a Hagada, ubiquitin:- Likewise we steadfastly follow the 15 steps of Kadesh uRechatz etc. Since we follow these 15 steps so vigilantly and no deviations therefrom, we take note that there are 2 mentions of washing:- uRechatz and Rochtzo, but there is no mention of a Rechitza between Tzofun & Borech, so clearly based on these 15 steps:- No washing before Borech {= no Mayim Acharonim}.
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