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)‏‏)‏

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