Surah 4

Surah 4:43

"You who believe! Do not go near the prayer when you are drunk, until you know what you are saying, or (when you are) defiled, unless (you are) travelers (on the) way, until you wash yourselves. If you are sick or on a journey, or if one of you has come from the toilet, or if you have touched women, and you do not find any water, take clean soil and wipe your faces and your hands. Surely God is pardoning, forgiving."