5:6O you who believe! When you rise to pray, wash your faces and your hands and arms to the elbows, and wipe your heads, and your feet to the ankles. If you had intercourse, then purify yourselves. If you are ill, or travelling, or one of you returns from the toilet, or you had contact with women, and could not find water, then use some clean sand and wipe your faces and hands with it. God does not intend to burden you, but He intends to purify you, and to complete His blessing upon you, that you may be thankful.

5:48And We revealed to you the Book, with truth, confirming the Scripture that preceded it, and superseding it. So judge between them according to what God revealed, and do not follow their desires if they differ from the truth that has come to you. For each of you We have assigned a law and a method. Had God willed, He could have made you a single nation, but He tests you through what He has given you. So compete in righteousness. To God is your return, all of you; then He will inform you of what you had disputed.