سنن أبي داود

Narrated Aisha, Ummul Mu'minin:

Safiyyah, daughter of Atiyyah, said: I entered upon Aisha with some women of AbdulQays, 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.