"‏ مَنْ شَرِبَ الْخَمْرَ شَرْبَةً لَمْ تُقْبَلْ لَهُ تَوْبَةٌ أَرْبَعِينَ صَبَاحًا فَإِنْ تَابَ تَابَ اللَّهُ عَلَيْهِ فَإِنْ عَادَ لَمْ تُقْبَلْ تَوْبَتُهُ أَرْبَعِينَ صَبَاحًا فَإِنْ تَابَ تَابَ اللَّهُ عَلَيْهِ فَإِنْ عَادَ كَانَ حَقًّا عَلَى اللَّهِ أَنْ يَسْقِيَهُ مِنْ طِينَةِ الْخَبَالِ يَوْمَ الْقِيَامَةِ ‏"

"I entered upon 'Abdullah bin 'Amr bin Al-'As when he was in a garden of his in At-Ta'if called Al-Waht. He was walking and holding hands with a young man of Quraish who was suspected of drinking Khamr. He said: 'I heard the Messenger of Allah [SAW] say: Whoever drinks Khamr once, his repentance will not be accepted for 40 days, then if he repents, Allah will accept his repentance. If he does it again, his repentance will not be accepted for 40 days, then if he repents, Allah will accept his repentance. If he does it again, his repentance will not be accepted for 40 days, then if he repents, Allah will accept his repentance. If he does it again (a fourth time), then it is a right upon Allah to make him drink from the mud of Khibal on the Day of Resurrection." This is the wording of 'Amr.