Maliks Muwatta Book 49, Hadith Number 13.
Section : Drinking while Standing.
Yahya related to me from Malik that he had heard that Umar ibn al-Khattab and Ali ibn Abi Talib and Uthman ibn Affan drank while standing.
Yahya related to me from Malik that he had heard that Umar ibn al-Khattab and Ali ibn Abi Talib and Uthman ibn Affan drank while standing.