Chapter 27: Drinks (Kitab Al-Ashribah)
Narrated Aisha, Ummul Mu' minin: Safiyyah, daughter of Atiyyah, said: I entered upon Aisha with some women of Abdul Qays, and asked her about mixing dried dates and raisins (for drink). She replied: I used to take a handful of dried dates and a handful or raisins and put them in a vessel, and then crush them (and soak in water). Then I would give it to the Prophet (ﷺ) to drink.
Sunan Abi Dawud 3708