Yazid bin Abi Habib يزيد بن أبي حبيب · The Book of Purification and its Sunnah

"He would sleep like that while he was sitting up."

"I asked 'Aishah about wiping over the leather socks and she said: 'Go to 'Ali and ask him, for he knows more about that than I do.' So I went to 'Ali and asked him about wiping. He said: 'The Messenger of Allah used to tell us that the resident could wipe for one day and one night, and the traveler could do so for three days.'"

"Aishah heard that 'Abdullah bin 'Amr was telling his wives to undo their braids (when they bathed). She said: 'How odd that Ibn 'Amr would do that! Why does he not tell them to shave their heads? The Messenger of Allah and I used to bathe from a single vessel, and I never did more than pour three handfuls of water over my head.'"