Believers, do not approach your prayers when you are drunk, but wait till you can grasp the meaning of your words; nor when you are unclean — unless you are travelling the road — until you have washed yourselves. If you are sick or on a journey, or if, when you have relieved yourselves or had intercourse with women, you can find no water, take some clean sand and rub your faces and your hands with it. Gracious is God and forgiving.