Musnad Ahmad 5:463

'Abdullah narrated to us, Muhammad ibn Ja'far al-Warkani narrated to us, Sharik informed us, from Khalid ibn 'Alqamah, from 'Abd Khayr, who said: We prayed the morning prayer, then we came to him and sat with him. He called for water for ablution, and a vessel containing water and a basin were brought to him. He poured the vessel over his right hand and washed his hands three times, rinsed his mouth three times, and sniffed water into his nose three times, with a handful for each. Then he washed his face three times, and his forearms three times each. Then he placed his hand into the vessel and wiped his head with both his palms once. Then he washed his feet three times each. Then he said: "This is the ablution of your Prophet, may Allah bless him and grant him peace, so learn it."