(87) باب الْوُضُوءِ لِمَنْ أَرَادَ أَنْ يَعُودَ
Narrated AbuRafi':
One day the Prophet (ﷺ) had intercourse with all his wives. He took a bath after each intercourse. I asked him: Messenger of Allah, why don't you make it a single bath? He replied: This is more purifying, better and cleaning.Abu Dawud said: The tradition narrated by Anas is more sound that this tradition.
Reference: Sunan Abi Dawud 219
In-book reference: Book 1, Hadith 219
English translation: Book 1, Hadith 219