Rabbi Levi bar Sisi expounded: “You were licentious with the sons of Egypt, your neighbors, great of flesh” (Ezekiel 16:26). What is “great of flesh”? Does this one have one leg and that one three? It is, rather, that they were all uncircumcised. Likewise it says: “The uncircumcised male who will not circumcise the flesh of his foreskin.” Alternatively, they possessed large male organs. Rabbi Berekhya and Rabbi Simon in the name of Rabbi Shmuel ben Rabbi Naḥmani: It is written: “He circumcised Israel at the hill of the aralot” (Joshua 5:3). Rabbi Levi said: The place [on the body] that is like a hill with the foreskin [orla].
Abraham in Joseph's Time
Vayikra Rabbah 25:7