Then a speaker spoke from a side of the house, and they did not know who he was: Wash the Prophet (ﷺ) while his clothes are on him. So they stood round the Prophet (ﷺ) and washed him while he had his shirt on him. They poured water on his shirt, and rubbed him with his shirt and not with their hands. Aisha used to say: If I had known beforehand about my affair what I found out later, none would have washed him except his wives.
In-book : Book 21, Hadith 53
English translation : Book 20, Hadith 3135