Musannaf Ibn Abi Shayba 1:153

Waki’ narrated to us, from Sufyan, from ‘Abdullah bin Muhammad bin ‘Aqil, who said: Al-Rubayyi’ narrated to me. She said: The Messenger of Allah (peace and blessings of Allah be upon him) used to come to us frequently. She said: So we placed a *mid’ah* (water vessel for ablution) for him. He came to us and performed ablution, and he wiped his head, beginning with the back of it, then he returned his hands to his forehead.