TT #2 · Parshas Tazria · Aliyah 1 · Passuk 2
English: Speak to the Israelite people thus: When a woman at childbirth bears a male, she shall be impure seven days; she shall be impure as at the time of her condition of menstrual separation.
Chabad.org — Chumash, English translation + Rashi for Vayikra 12:2
Torah Temimah cites Sifra (Toras Kohanim).
Daat — Sifra (Toras Kohanim) on Vayikra 12
English: Israelites become impure through childbirth, but an idolatrous gentile does not become impure through childbirth.
Categorical distinction
The midrash distinguishes the Torah’s childbirth-impurity status from the status of a gentile woman.