Hazrat Abu Saeed Khudri (may Allah be pleased with him) narrates that the women of Banu Mustaliq came into our possession as captives. We used to have intercourse with them and practiced coitus interruptus (azl). One day, I was with a slave woman in the market of Banu Qaynuqa when a Jew passed by me and said, "O Abu Saeed, what about this slave woman!" I said, "She is my slave and I want to sell her." He asked, "Have you had intercourse with her?" I said, "Yes." He said, "And you want to sell her even though it is possible that your semen is in her womb?" I said, "I used to practice azl with her." He said, "This is a form of burying alive." I went to the presence of the Prophet (peace be upon him) and related the entire incident. He said, "The Jews have lied, the Jews have lied."