Purification (Kitab Al-Taharah)
Dawud :: Book 1 : Hadith 133
Narrated Abdullah ibn Abbas:
Sa'id ibn Jubayr reported: Ibn Abbas saw the Apostle of Allah (peace_be_upon_him) performed ablution. He narrated the tradition which says that he (the Prophet) performed each detail of ablution three times. He wiped his head and ears once.