He will say: Enter into fire among the nations that have passed away before you from among jinn and men; whenever a nation shall enter, it shall curse its sister, until when they have all come up with one another into it; the last of them shall say with regard to the foremost of them: Our Lord! these led us astray therefore give them a double chastisement of the fire. He will say: Every one shall have double but you do not know.

So when harm afflicts a man he calls upon Us; then, when We give him a favor from Us, he says: I have been given it only by means of knowledge. Nay, it is a trial, but most of them do not know.