Oh ye who believe! Draw not near unto prayer when ye are drunken, till ye know
that which ye utter, nor when ye are polluted save when journeying upon the road,
till ye have bathed. And if ye be ill, or on a journey, or one of you cometh from
the closet, or ye have touched women, and ye find not water, then go to high clean
soil and rub your faces and your hands (therewith). Lo! Allah is Benign, Forgiving