Commentary for Shabbat 266:15

פשיטא מדקא מחללי עליה שבתא סכנה הוא מהו דתימא האי דם מיפקד פקיד קמ"ל חבורי מיחבר

R. Ashi demurred: Of an adult it is explicitly stated, and the uncircumcised male who is not circumcised in the flesh of his foreskin, [that soul shall be cut off from his people]?<span class="x" onmousemove="('comment',' Gen. XVII, 14; v. p. 665, n. 1. Why then state it here? ');">²⁸</span> Rather said R. Ashi: In truth it means the surgeon: e.g., if he came at twilight on the Sabbath, and they warned him, 'you have no time,'<span class="x" onmousemove="('comment',' To perform the whole (if the circumcision before the day ends. ');">²⁹</span>

Rashi on Shabbat