It was narrated from 'Umar that:
When the prohibition of Khamr was revealed, 'Umar said: O Allah, give us a clear ruling on Khamr, and the Verse in Al-Baqarah was revealed. 'Umar was called and it was recited to him. Then 'Umar said: O Allah, give us a clear ruling on Khamr, and the Verse in An-Nisa' was revealed: O you who believe! Approach not As-Salah (the prayer) when you are in a drunken state . And when the Iqamah for prayer was said, the caller of the Messenger of Allah [SAW] would cry out: O you who believe! Approach not As-Salah (the prayer) when you are in a drunken state. 'Umar was called and this was recited to him. Then he said: O Allah, give us a clear ruling on Khamr. Then the Verse in Surat Al-Ma'idah was revealed, and 'Umar was called, and it was recited to him. When he reached the words, So, will you not then abstain?, 'Umar said: We have abstained, we have abstained.