Riyad as-Salihin, Book 9, Hadith 1245 (In-Book) ⓘ
'Aishah, and Umm Salamah (May Allah be pleased with them) reported: The Messenger of Allah would wake during Ramadan (fasting) in a state of major impurity without a wet dream, but on account of sexual intercourse and he would take a bath before dawn.[Al- Bukhari and Muslim].
وعن عائشة وأم سلمة رضي الله عنهما قالتا: كان رسول الله صلى الله عليه وسلم يصبح جنبًا من غير حلم ثم يصوم. ((متفق عليه))