Abu Dawud Book 20, Hadith Number 3698.
Chapter : Drink made from mixing of various kinds of dates or dates and raisins.
Narated By ‘Aisha, Ummul Mu’minin : Raisins were steeped for the Apostle of Allah (PBUH) and then dried dates were infused in them, or dried dates were steeped and then raisins were infused in them.