عَنْ عَبْدِ خَيْرٍ (يَصِفُ وَضُوءَ عَلِيٍّ رَضِيَ اللَّهُ عَنْهُ) قَالَ: ثُمَّ وَضَعَ يَدَهُ فِي الرَّكْوَةِ فَمَسَحَ بِهَا رَأْسَهُ بِكَفَّيْهِ جَمِيعًا مَرَّةً وَاحِدَةً ثُمَّ غَسَلَ رِجْلَيْهِ ثَلَاثًا ثَلَاثًا ثُمَّ قَالَ (عَلِيٌّ): هَذَا وَضُوءُ نَبِيِّكُمْ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَاعْلَمُوهُ، (وَفِي رِوَايَةٍ: قَالَ: وَمَسَحَ بِرَأْسِهِ فَبَدَأَ بِمُقَدَّمِ رَأْسِهِ إِلَى مُؤَخَّرِهِ وَقَالَ: وَلَا أَدْرِي أَرَدَّ يَدَهُ أَمْ لَا، وَغَسَلَ رِجْلَيْهِ ثُمَّ قَالَ: مَنْ أَحَبَّ أَنْ يَنْظُرَ إِلَى وَضُوءِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَهَذَا وَضُوءُ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ)
Abd Khair (may Allah have mercy on him), while describing the ablution of Sayyiduna Ali (may Allah be pleased with him), says: Then he put his hand in the vessel and wiped his entire head once with both palms, then washed both feet three times each, then he said: "This is the ablution of your Prophet, learn it." In another narration it is mentioned: He wiped his head in such a way that he moved from the front part of the head to the back part. But the narrator says: I do not know whether he returned his hands or not, then he washed his feet and said: "Whoever wishes to see the ablution of the Messenger of Allah (peace and blessings be upon him), this is the ablution of the Messenger of Allah (peace and blessings be upon him)."