Musnad Abu Ya'la al-Mawsili 106:66

Muhammad ibn Bashar narrated to us, Muhammad narrated to us, Shu'bah narrated to us, from Abu Ishaq, who said: Al-Bara' ibn 'Azib said: Some people from the companions of the Messenger of Allah (may Allah bless him and grant him peace) died while they were drinking wine. When its prohibition was revealed, some of the companions of the Prophet (may Allah bless him and grant him peace) said: "What about our companions who died while they were drinking it?" Then was revealed: "There is no sin upon those who believe and do righteous deeds for what they have consumed if they fear Allah and believe" (Al-Ma'idah: 93).