Musnad Ahmad 5:633

'Abdullah narrated to us, Abu Bahr narrated to us, Abu 'Awanah narrated to us, from Khalid ibn 'Alqamah, from 'Abd Khayr, who said: We came to 'Ali, and he had already prayed. He called for a pitcher, then he rinsed his mouth three times and sniffed water into his nose three times, rinsing his mouth from the same palmful he took. He washed his face three times, his right hand three times, and his left hand three times. Then he said: "Whoever is pleased to know the ablution of the Messenger of Allah, may Allah bless him and grant him peace, then it is this."