Hadith: and performed ablution like that of the Prophet (may Allah's peace and blessings be upon him) in front of them

عَنْ يحيى بنِ عُمَارةَ المَازِنِيِّ قَالَ:
شَهِدْتُ عَمْرَو بْنَ أَبِي حَسَنٍ سَأَلَ عَبْدَ اللَّهِ بْنَ زَيْدٍ، عَنْ وُضُوءِ النَّبِيِّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ فَدَعَا بِتَوْرٍ مِنْ مَاءٍ، فَتَوَضَّأَ لَهُمْ وُضُوءَ النَّبِيِّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ، فَأَكْفَأَ عَلَى يَدِهِ مِنَ التَّوْرِ، فَغَسَلَ يَدَيْهِ ثَلاَثًا، ثُمَّ أَدْخَلَ يَدَهُ فِي التَّوْرِ، فَمَضْمَضَ وَاسْتَنْشَقَ وَاسْتَنْثَرَ، ثَلاَثَ غَرَفَاتٍ، ثُمَّ أَدْخَلَ يَدَهُ فَغَسَلَ وَجْهَهُ ثَلاَثًا، ثُمَّ غَسَلَ يَدَيْهِ مَرَّتَيْنِ إِلَى المِرْفَقَيْنِ، ثُمَّ أَدْخَلَ يَدَهُ فَمَسَحَ رَأْسَهُ، فَأَقْبَلَ بِهِمَا وَأَدْبَرَ مَرَّةً وَاحِدَةً، ثُمَّ غَسَلَ رِجْلَيْهِ إِلَى الكَعْبَيْنِ.
[صحيح] - [متفق عليه] - [صحيح البخاري: 186]

Yahya ibn ‘Umārah al-Māzini reported:
I witnessed 'Amr ibn Abi Hasan asking 'Abdullah ibn Zayd about the ablution of the Prophet (may Allah's peace and blessings be upon him), so he asked for a vessel of water and performed ablution like that of the Prophet (may Allah's peace and blessings be upon him) in front of them. He poured water from the vessel on his hand, washing his hands thrice. Then, he put his hand inside the vessel, rinsed his mouth, sniffed water, and blew it out with three handfuls. He put his hand in the water again and washed his face thrice. Then, he washed his hands twice up to the elbows, after which he put his hand in the water and wiped over his head, bringing them to the front and the back of his head once. Then, he washed his feet up to the ankles.
[Authentic hadith] - [Narrated by Bukhari & Muslim] - [Sahih Bukhari - 186]

Explanation

‘Abdullah ibn Zayd (may Allah be pleased with him) clarified how the Prophet (may Allah's peace and blessings be upon him) used to perform ablution practically. He asked for a small water container. First, he started by washing his hands; he tilted the container, poured water, and washed them thrice outside the container. Then, he put his hand inside the container and took three handfuls of water, and with each handful of water, he rinsed his mouth, sniffed water into his nostrils, and blew it out. After that, he took water from the container and washed his face thrice. Then, he took water therefrom and washed his hands up to the elbows twice each. He again put his hand in the container and wiped over his head with both hands, starting from the hairline and back to the nape, the upper part of the neck, and then returned them to the place where he started from. After that, he washed his feet along with the ankles.