And Muhammad ibn al-Muthanna narrated to us, Mu'adh ibn Mu'adh narrated to us, Ibn 'Awn narrated to us, from Muhammad, from 'Abd al-Rahman ibn Bishr al-Ansari. He said: He returned the hadith until he traced it back to Abu Sa'id al-Khudri, who said: Coitus interruptus was mentioned in the presence of the Prophet, peace be upon him, and he said, "And what is that?" They said: A man who has a wife who is nursing, and he has intercourse with her but dislikes that she become pregnant from him; and a man who has a slave woman, and he has intercourse with her but dislikes that she become pregnant from him. He said: "There is no harm upon you if you do not do that, for it is only the decree." Ibn 'Awn said: So I narrated it to al-Hasan, and he said: By Allah, it is as if this is a prohibition.