From Sahih Muslim (Hadith 5138):
Anas b. Malik reported:I was serving drink to Abu 'Ubaida b. jarrah, Abu Talha and Ubayy b. Ka'b prepared from unripe dates and fresh dates when a visitor came and he said: Verily liquor has been prohibited. Thereupon, Abu Talha said: Anas, stand up and break this pitcher. I stool up and (took hold) of a pointed stone and struck the pitcher with its lower part until it broke into pieces
Reference: Muslim 5138