The Book of Menstruation (Kitab Al-Haid)
Muslim :: Book 3 : Hadith 630
'A'isha reported: I and the Messenger of Allah (may peace be upon him) took a bath from one vessel which was placed between me and him and he would get ahead of me, so that I would say: Spare (some water for) me, spare (some water for) me; and she said that they had had sexual intercourse.
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