Maliks Muwatta Book 18, Hadith Number 10.

Section : Fasting When Junub in the Morning during Ramadan.

Yahya related to me from Malik from Abd Rabbih ibn Said from Abu Bakr ibn Abd ar-Rahman ibn al-Harith ibn Hisham from A’isha and Umm Salama, the wives of the Prophet, may Allah bless him and grant him peace, that the Prophet, may Allah bless him and grant him peace, used to get up in the morning junub from intercourse, not a dream, in Ramadan, and then he would fast.”