TT #260 · Parshas Tazria · Aliyah 7 · Passuk 47
English: If a garment has a lesion of tzaraas, whether in a wool garment or a linen garment,
Torah Temimah cites Sifra (Toras Kohanim) for the initial rule’s named wool and linen categories.
Sifra — Vayikra 13, Midrash Sefer
English: The verse explicitly names the standard wool and linen materials.
Textual derivation
The initial rule names the standard forms of wool and linen; the next derivation extends the category.