Parallel
Genesis 17:26
Swete's Septuagint · Berean Standard Bible
ἐν τῷ καιρῷ τῆς ἡμέρας περιετμήθη Ἀβραὰμ καὶ Ἱσμαὴλ ὁ υἱὸς αὐτοῦ·
Abraham and his son Ishmael were circumcised on the same day.