Parashas Acharei Mos · Passuk 16:23
Chabad.org — English translation + Rashi
Torah Temima points to Pesachim 26a.
English: “And he shall leave them there” — this teaches that they require genizah (they may not be used again and must be stored away).
Halachic inference from “leave them there”.
The linen garments of the Kohen Gadol used for the inner Yom Kippur service are set aside permanently (genizah); they are not reused for future service.