TT #222 · Parshas Tazria · Aliyah 7 · Passuk 40
English: If a man’s head becomes bald, he is bald; he is pure.
Chabad.org — Chumash, English translation + Rashi for Vayikra 13:40
Torah Temimah cites Sifra (Toras Kohanim) for including the beard in the bald-head rule.
Sifra — Vayikra 13, Midrash Sefer
English: The Sifra derives from “and a man” to include the beard in the bald-head rule.
The rule includes an elderly man whose head has become bald.
The Sifra includes the beard in the bald-head discussion; here זקן means beard, not an elderly man.