Purify

Have you not seen those who falsely elevate themselves? It is Allah who elevates whoever He wills, and none will be wronged even by the width of a thread.

4:49Hast thou not seen those who praise themselves for purity? Nay, Allah purifieth whom He will, and they will not be wronged even the hair upon a date-stone.

Were it not for Allah’s grace and mercy, none of you would have been purified. But Allah purifies whom He wills.

24:21O ye who believe! Follow not the footsteps of the devil. Unto whomsoever followeth the footsteps of the devil, lo! he commandeth filthiness and wrong. Had it not been for the grace of Allah and His mercy unto you, not one of you would ever have grown pure. But Allah causeth whom He will to grow. And Allah is Hearer, Knower.

So do not claim purity for yourselves; He knows best who is truly mindful.

53:32Those who avoid enormities of sin and abominations, save the unwilled offences - (for them) lo! thy Lord is of vast mercy. He is Best Aware of you (from the time) when He created you from the earth, and when ye were hidden in the bellies of your mothers. Therefor ascribe not purity unto yourselves. He is Best Aware of him who wardeth off (evil).