Sunan Ibn Majah, Chapter: The Chapters on Drinks

"We used to make Nabidh for the Messenger of Allah (saw) in a water skin. We would take a handful of dates or a handful of raisins, and put them in it, then pour water over it. We would make that in the morning and he would drink it in the evening, or we would make it in the evening and he would drink it in the morning."