Bereshis 17:25-27

Orthodox Jewish Bible

²⁵ And Yishmael bno was thirteen shanah, when he was circumcised in the basar of his arelah (foreskin).

²⁶ In the very same day was Avraham circumcised, and Yishmael bno.

²⁷ And all the men of his bais, born in the bais, and bought with kesef of the foreigner, were circumcised with him.