Parashas Acharei Mos · Passuk 16:09
Chabad.org — English translation + Rashi
Torah Temima points to Toras Kohanim.
English: “And he shall make it a chatas” — the lot makes it a chatas; the [verbal] name does not make it a chatas.
Lot establishes the chatas
Although a verbal declaration is required, the essential designation is effected by the lot that came up “to Hashem.”