(50) باب صِفَةِ وُضُوءِ النَّبِيِّ صلى الله عليه وسلم
Zirr b. Hubaish said that the heard that ' Ali was asked how the Messenger of Allah (ﷺ) used to perform ablution. He then narrated the tradition and said:
he wiped his head so much so that drops (of water) were about to trickle down. He then washed his feet three times and said: This is how the Messenger of Allah (ﷺ) performed ablutions.
Reference: Sunan Abi Dawud 114
In-book reference: Book 1, Hadith 114
English translation: Book 1, Hadith 114