Muwatta Malik: Book 18, Hadith 12

Yahya related to me from Malik from Sumayy, the mawla of Abu Bakr ibn Abd ar-Rahman ibn al-Harith ibn Hisham that he heard Abu Bakr ibn Abd ar-Rahman ibn al-Harith ibn Hisham say, “My father and I were with Marwan ibn al Hakam at the time when he was amir of Madina, and someone mentioned to him that Abu Hurayra used to say, ‘If someone begins the morning junub, he has broken the fast for that day.’ Marwan said, ‘I swear to you, Abdar-Rahman, you must go to the two umm al muminin, A’isha and Umm Salama, and ask them about it.’

”Abd ar-Rahman went to visit A’isha and I accompanied him. He greeted her and then said, ‘Umm al-muminin, we were with Marwan ibn al Hakam and someone mentioned to him that Abu Hurayra used to say that if some one had begun the morning junub, he had broken the fast for that day.’ A’isha said, ‘It is not as Abu Hurayra says Abd ar-Rahman. Do you dislike what the Messenger of Allah, may Allah bless him and grant him peace, used to do?’, and Abd ar-Rahman said, ‘No, by Allah.’ A’isha said, ‘I bear witness that the Messenger of Allah, may Allah bless him and grant him peace, used to get up in the morning junub from intercourse, not a dream, and would then fast for that day.’ ”

He continued, “Then we went and visited Umm Salama, and Abd ar- Rahman asked her about the same matter and she said the same as A’isha had said. Then we went off until we came to Marwan ibn al-Hakam Abd ar-Rahman told him what they had both said and Marwan said, ‘I swear to you, Abu Muhammad, you must use the mount which is at the door, and go to Abu Hurayra, who is on his land at al Aqiq, and tell him this.’ So Abd ar-Rahman rode off, and I went with him, until we came to Abu Hurayra. Abd ar-Rahman talked with him for a while, and then mentioned the matter to him, and Abu Hurayra said, ‘I don’t know anything about it. I was just told that by someone.'”