Sunan Abi Dawud 114
سنن أبي داود#114Sahihحَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا رَبِيعَةُ الْكِنَانِيُّ، عَنِ الْمِنْهَالِ بْنِ عَمْرٍو، عَنْ زِرِّ بْنِ حُبَيْشٍ، أَنَّهُ سَمِعَ عَلِيًّا، رضى الله عنه وَسُئِلَ عَنْ وُضُوءِ، رَسُولِ اللَّهِ صلى الله عليه وسلم فَذَكَرَ الْحَدِيثَ وَقَالَ وَمَسَحَ عَلَى رَأْسِهِ حَتَّى لَمَّا يَقْطُرْ وَغَسَلَ رِجْلَيْهِ ثَلاَثًا ثَلاَثًا ثُمَّ قَالَ هَكَذَا كَانَ وُضُوءُ رَسُولِ اللَّهِ 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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 1:114