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." (Using translation from Nasāʾī 5540)  

عُمَرُ «اللهُمَّ بَيِّنْ لَنَا فِي الْخَمْرِ بَيَانًا شَافِيًا فَنَزَلَتِ الْآيَةُ الَّتِي فِي الْبَقَرَةِ فَدُعِيَ عُمَرُ فَقُرِئَتْ عَلَيْهِ» فَقَالَ اللهُمَّ بَيِّنْ لَنَا فِي الْخَمْرِ بَيَانًا شَافِيًا فَنَزَلَتِ الْآيَةُ الَّتِي فِي النِّسَاءِ {يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تَقْرَبُوا الصَّلَاةَ وَأَنْتُمْ سُكَارَى حَتَّى تَعْلَمُوا مَا تَقُولُونَ} [النساء 43] فَكَانَ مُنَادِي رَسُولِ اللهِ ﷺ إِذَا أَقَامَ الصَّلَاةَ نَادَى {لَا تَقْرَبُوا الصَّلَاةَ وَأَنْتُمْ سُكَارَى حَتَّى تَعْلَمُوا مَا تَقُولُونَ} [النساء 43] فَدُعِيَ عُمَرُ فَقُرِئَتْ عَلَيْهِ فَقَالَ اللهُمَّ بَيِّنْ لَنَا فِي الْخَمْرِ بَيَانًا شَافِيًا فَنَزَلَتِ الْآيَةُ الَّتِي فِي الْمَائِدَةِ فَدُعِيَ عُمَرُ فَقُرِئَتْ عَلَيْهِ فَلَمَّا بَلَغَ {فَهَلْ أَنْتُمْ مُنْتَهُونَ} [المائدة 91] قَالَ عُمَرُ «انْتَهَيْنَا انْتَهَيْنَا»