Musnad Abu Ya'la al-Mawsili 117:55

Abu al-Rabi' narrated to us, Hammad narrated to us, Thabit narrated from Anas, that the Prophet (peace be upon him) called for water, and a shallow vessel was brought to him. He said: The people began to perform ablution, and I estimated them to be between sixty and eighty. He said: I began to look at the water springing forth from between his fingers.