Abu Dawud Book 20, Hadith Number 3665.

Narated By Anas ibn Malik : I was serving wine to the people in the house of Abu Talhah when it was prohibited and that day our wine was made from unripe dates. A man entered upon us and said: The wine has been prohibited, and the herald of the Apostle of Allah (PBUH) made an announcement. We then said: This is the herald of the Apostle of Allah (PBUH)