TT #607 · Parashas Ki Seitzei · Sixth / Seventh Aliyah · Passuk 24:20
When you beat your olive tree, you shall not go over the boughs again; it shall be for the stranger, the orphan, and the widow.
Torah Temimah points to Sifrei Devarim 284 / Peah.
TT lemma: לַגֵּר לַיָּתוֹם וְלָאַלְמָנָה יִהְיֶה.
Sefaria — Sifrei Devarim 284 / Peah
English: ‘It shall be for the stranger, the orphan, and the widow’ – these are gifts for the poor.
Derash classifying the gift (Sifrei) — the leftover olives join pe’ah and related poor-gifts.
What is left after the first beating of the olive tree is a formal gift to the stranger, the orphan, and the widow.