TT #306 · Parshas Tazria · Aliyah 7 · Passuk 59
English: This is the law of the lesion of tzaraas in a garment of wool or linen, in warp or woof, or in any leather article, to declare it clean or impure.
Chabad.org — Chumash, English translation + Rashi for Vayikra 13:59
Torah Temimah cites Sifra (Toras Kohanim) for the comparison between garment tzaraas and house tzaraas for impurity through entry.
Sifra — Vayikra 13, Midrash Sefer
English: The garment and other listed articles are compared with a house: just as a house can transmit impurity through entry, so can these articles.
Textual derivation
By comparison with a house afflicted by tzaraas, the listed afflicted articles can render a person impure through entering a space in which they are present.