Bulugh al-Maram #786

'A’isha and Umm Salamah (RAA) narrated, The Messenger of Allah (ﷺ) would rise in the morning (when it is already Fajr time) while he was Junub (in a state of major ritual impurity due to intercourse) on a day in Ramadan. He would then perform Ghusl and fast. Agreed upon. In the narration of Muslim on the authority of Umm Salamah, ‘And he would not make up for it (that day).’