I witnessed Ali call for a chair and sit upon it. He then called for water in a vessel and washed his hands three times. He rinsed his mouth and nose with a single handful of water three times, washed his face three times, and washed each of his hands three times. He dipped his hand into the vessel and wiped his head, then washed each of his feet three times. He then said, "Whoever wishes to see how the Messenger of Allah ﷺ performed ablution, this is how he performed it."
أخبرنا عمرو بن علي وحميد بن مسعدة عن يزيد وهو ابن زريع قال حدثني شعبة عن مالك بن عرفطة
شهدت عليا دعا بكرسي فقعد عليه ثم دعا بماء في تور فغسل يديه ثلاثا ثم مضمض واستنشق بكف واحد ثلاثا ثم غسل وجهه ثلاثا ويديه ثلاثا ثلاثا ثم غمس يده في الإناء فمسح برأسه ثم غسل رجليه ثلاثا ثلاثا ثم قال من سره أن ينظر إلى وضوء رسول الله ﷺ فهذا وضوءه