Musnad Ahmad 33:689

Hashim narrated to us, Shu'bah narrated to us, 'Amr ibn Murrah and Husayn ibn 'Abd al-Rahman informed me, from Salim ibn Abi al-Ja'd, from Jabir ibn 'Abd Allah, who said: Thirst afflicted us at al-Hudaybiyah, so we rushed toward the Messenger of Allah (peace and blessings of Allah be upon him), and before him was a vessel containing water. He placed his fingers in it like this, and said: "Take, in the name of Allah." He said: The water began to flow from between his fingers as if they were springs, so it sufficed us and was enough for us. Husayn said in his narration: So we drank and performed ablution.