TT #12 · Parashas Toldos · Passuk 25:25
The first one emerged red, like a hairy mantle all over; so they named him Esav.
Torah Temimah points to Pesachim 5a. E-Daf · Sefaria — Pesachim 5a
TT lemma: ויצא הראשון.
In the merit of three “firsts” they merited three “firsts” — to eradicate the seed of Esav, to the building of the Temple, and to the name of Mashiach.
Custom (Bavli — merit of “first” commandments against Esav)
In the merit of the three commandments called “first,” Israel merited three corresponding “firsts,” including the eradication of the seed of Esav.