He said: They are threatening to kill me now. We said: Allah will be sufficient for you against them, Commander of the Faithful! He asked: Why kill me? I heard the Messenger of Allah (ﷺ) say: It is not lawful to kill a man who is a Muslim except for one of the three reasons: Kufr (disbelief) after accepting Islam, fornication after marriage, or wrongfully killing someone, for which he may be killed.
I swear by Allah, I have not committed fornication before or after the coming of Islam, nor did I ever want another religion for me instead of my religion since Allah gave guidance to me, nor have I killed anyone. So for what reason do you want to kill me?
Abu Dawud said: 'Uthman and Abu Bakr (Allah be pleased with them) abandoned drinking wine in pre-Islamic times.
In-book : Book 41, Hadith 9
English translation : Book 40, Hadith 4487