4:18But repentance is not available for those who commit evils, until when death approaches one of them, he says, “Now I repent,” nor for those who die as disbelievers. These—We have prepared for them a painful torment.

4:43O you who believe! Do not approach the prayer while you are drunk, so that you know what you say; nor after sexual orgasm—unless you are travelling—until you have bathed. If you are sick, or traveling, or one of you comes from the toilet, or you have had intercourse with women, and cannot find water, find clean sand and wipe your faces and your hands with it. God is Pardoning and Forgiving.