TT #38 · Parshas Tazria · Aliyah 1 · Passuk 5
English: If she bears a female, she shall be impure two weeks as during her menstruation, and she shall remain in a state of blood purification for sixty-six days.
Chabad.org — Chumash, English translation + Rashi for Vayikra 12:5
Torah Temimah cites Zevachim 38a.
E-Daf — Zevachim 38a · Shas.org — Zevachim 38a · Vayedaber — vowelized Zevachim 38a
English: “Seventy” is written; one might say that both the written text and the received reading apply, requiring forty-two days.
Textual comparison
The discussion tests whether the written form “seventy” and its received reading could imply a forty-two-day period.