Sunan Abu Dawood, Chapter: Purification (Kitab Al-Taharah)

The ablution water was brought to the Messenger (peace_be_upon_him) and he performed ablution; he washed his hands up to wrists three times, then washed his forearms three times. He then rinsed his mouth and snuffed up water three times; then he wiped his head and ears inside and outside.