(50) باب صِفَةِ وُضُوءِ النَّبِيِّ صلى الله عليه وسلم
Another version says:
He performed each part of the ablution three times and washed his feet times without number. (TR)
Reference (TR): Sunan Abi Dawud 125 (TR)
In-book reference (TR): Book 1, Hadith 125 (TR)
English translation (TR): Book 1, Hadith 125 (TR)