Closing of sefer · Unit 5
Torah Temimah: “at Mount Sinai” — all were said at Sinai (R’ Akiva: details too; R’ Yishmael: generalities at Sinai, details at Ohel Moed).
English: “At Mount Sinai” teaches that all were said at Sinai. R’ Akiva: even details; R’ Yishmael: generalities at Sinai, details at the Tent of Meeting.
Sinaitic completeness derasha.
The closing attribution to Sinai anchors the entire body of commandments (and on R’ Akiva’s view their details) as Sinaitic.