O you who believe! do not go near prayer when you are Intoxicated until you know (well) what you say, nor when you are under an obligation to perform a bath-- unless (you are) travelling on the road-- until you have washed yourselves; and if you are sick, or on a journey, or one of you come from the privy or you have touched the women, and you cannot find water, betake yourselves to pure earth, then wipe your faces and your hands; surely Allah is Pardoning, Forgiving.

And when it is said to them, Come to what Allah has revealed and to the Messenger, they say: That on which we found our fathers is sufficient for us. What! even though their fathers knew nothing and did not follow the right way.

Say: I do not find in that which has been revealed to me anything forbidden for an eater to eat of except that it be what has died of itself, or blood poured forth, or flesh of swine-- for that surely is unclean-- or that which is a transgression, other than (the name of) Allah having been invoked on it; but whoever is driven to necessity, not desiring nor exceeding the limit, then surely your Lord is Forgiving, Merciful.

And when it is said to them: Follow what Allah has revealed, they say: Nay, we follow that on which we found our fathers. What! though the Shaitan calls them to the chastisement of the burning fire!