Sunan Ibn Majah Book 1, Hadith 148

Performed ablution washing each part three times, and he attributed that to the Prophet.

Previous Hadith

"I saw `Uthman and `Ali performing ablution, washing each part three times, and they said: 'This is how the Messenger of Allah used to perform ablution.'" (Hasan)

Another chain with similar wording.

Sunan Ibn Majah Book 1, Hadith 147
Next Hadith

The Prophet did ablution washing each part three times.

Sunan Ibn Majah Book 1, Hadith 149