Sunan An-Nasa'i

It was narrated from 'Abdullah bin 'Amr that:The Prophet [SAW] said: ""Whoever drinks Khamr and puts it in his belly, Allah will not accept his Salah for seven (days), if he dies during them"" - Muhammad bin Adam (One of the narrators) said: ""he will die a Kafir. If he was too intoxicated to offer any of the obligatory"" - Ibn Adam said: ""or recite Qur'an, his Salah will not be accepted for 40 days, and if he dies during them,"" And Ibn Adam said: ""He will die a Kafir