that 'Ali bin Abi Talib said: "'Abdur-Rahman bin 'Awf prepared some food for which he invited us, and he gave us some wine to drink. The wine began to affect us when it was time for Salat. So they encouraged me (to lead) and I recited: 'Say: O you disbelievers! I do not worship what you worship, and we worship what you worship' - so Allah, Most High, revealed: O you who believe! Do not approach Salat when you are in a drunken state until you know what you are saying (4:43)."