Sahih Muslim Book 23, Hadith Number 4884.

Anas b. Malik reported: I was standing amongst the uncles of my tribe serving them Fadikh while I was the youngest of them, when a person came and said: Verily the use of liquor has been prohibited. They said: Anas, spill it away. So I spilt it. He (one of the narrators. Sulaiman Taimi) said that he asked Anas what that was (the Fadikh). He said: It had been prepared from unripe and ripe dates. Abu Bakr b. Anas said: It was their liquor in those days. Sulaiman said: A person narrated it to me from Anas b. Malik that he had said so.