English of Core Text: It was taught: from where do we know that milah is in that place… R. Natan said: from “an uncircumcised male who does not circumcise the flesh of his foreskin” — the place that distinguishes male from female. For the androgynous one does not desecrate Shabbat.
On the daf / in context: The karet clause and the word “zachar” together fix both the anatomical site and the limits of Shabbat override for doubtful cases.
Type of Learning
Custom
What Is Learned
The covenant’s penalty language defines both where milah is performed and when it may not override Shabbat.