O You who have chosen to be graced with belief! When you congregate for Salat, wash your faces and your forearms, hands to the elbows. Lightly rub you heads and your feet to the ankles. If you are in a state of ceremonial impurity, bathe your whole body. But, if you are ill or traveling, or coming from the privy, or are in a state of ceremonial impurity and find no water, then take clean sand or earth and lightly rub your faces and hands. (This will help you prepare mentally for congregational prayer (4:43)). Allah does not wish to place upon you any difficulty, but to make you clean and to perfect His blessings upon you, that you be grateful.