Parashas Metzora · Passuk 15:05
Chabad.org — English translation + Rashi
Torah Temima points to Toras Kohanim.
English: “His bed” — [while it remains] his bed; and if it is broken, it is pure.
Loss of midras status when broken
Chazal teach that once the article is broken so that it no longer functions as a bed, its midras status ceases.