TT #150 · Parshas Tazria · Aliyah 3 · Passuk 18
English: When the flesh has a boil on its skin and it heals.
Chabad.org — Chumash, English translation + Rashi for Vayikra 13:18
Sifra (Toras Kohanim).
Sifra — Vayikra 13, Midrash Sefer
English: “In his skin”—I know only a case where part is a boil and part a baheres. What about a boil over part with a baheres over the whole area, a baheres over part with a boil over the whole area, or a boil and baheres each covering the whole area? Scripture repeats “in his skin,” extending the rule to all these combinations.
Textual derivation
The repeated phrase covers all four configurations: a partial boil and partial baheres, a partial boil with baheres over the whole area, a partial baheres with boil over the whole area, and both conditions covering the whole area.