Parashas Bo · Shemos 12:6 · TT note 5
Torah Temimah on Shemos 12:6, note 5 (on כֹּל קְהַל עֲדַת יִשְׂרָאֵל) points to Pesachim 64b.
Sefaria — Exodus 12:6
Sefaria — Torah Temimah on Exodus 12:6
Sefaria — Pesachim 64b
E-Daf — Pesachim 64b
English: Rabbi Yitzchak said: The Pesach is slaughtered only in three groups of thirty people each. What is the reason? [The verse uses] “assembly” (kahal), “congregation” (edah), and “Yisrael.”
Triple language in the verse yields three successive groups for the slaughter.
Pesach slaughter is organized in three waves so that “kahal,” “edah,” and “Yisrael” are each represented.