Abu Dawood: Hadith 117

"Ali b. Abi Talib entered upon me after he has passed water. He then called for water for ablution. We brought to him a vessel containing water, and placed it before him. He said: O Ibn'Abbas, may I not show you how the Messenger of Allah (ﷺ) used to perform ablution? I replied : Why not? He then inclined the vessel to his hand and washed it. He then put his right hand in the vessel and poured water over the other hand and washed his hands up to the wrist. He then rinsed his mouth and snuffed up water. He then put both of his hands together in the water and took out a handful of water and threw it upon the face. He then inserted both of his thumbs in the front part of the ears. He did like that twice and thrice. He then took a handful of water and poured it over his forehead and left it running down his face. He then washed his forearms up to the elbow three times. He then wiped his head and the back of his ears. He then put both of his hands together in the water and took a handful of it and threw it on his foot. He had a shoe foot like that. Do you wash your foot while it is in the shoe? He replied : Yes, while it is in the shoe. This question and answer were repeated thrice.

Abu Dawud said: The version transmitted by Ibn Juraij from Shaibah is similar to the one narrated by " Ali. In this version Hajjaj reported on the authority of Ibn Juraij the wording: He wiped his head once. Ibn Wahb narrated from Ibn Juraij the wording: he wiped his head three times.