O you who believe! do not go near prayer when you are Intoxicated until you know (well) what you say, nor when you are under an obligation to perform a bath-- unless (you are) travelling on the road-- until you have washed yourselves; 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 Pardoning, Forgiving.

And of the dwellers of the desert are those who believe in Allah and the latter day and take what they spend to be (means of) the nearness of Allah and the Messenger's prayers; surely it shall be means of nearness for them; Allah will make them enter into His mercy; surely Allah is Forgiving, Merciful.