O you who believe, go not near prayer when you are intoxicated till you know what you say, nor after sexual intercourse -- except that you are merely passing by -- until you have bathed. And if you are sick or on a journey, or one of you come from the privy, or you have touched the women, and you cannot find water, betake yourselves to pure earth, then wipe your faces and your hands. Surely Allah is ever Pardoning, Forgiving.