۞ And make mention (O Muhammad) of the brother of A'ad when he warned his folk among the wind-curved sandhills - and verily warners came and went before and after him - saying: Serve none but Allah. Lo! I fear for you the doom of a tremendous Day. 21 They said, 'What, hast thou come to pervert us from our gods? Then bring us that thou promisest us, if indeed thou speakest truly.' 22 He said, 'Knowledge is only with God, and I deliver to you the Message with which I was sent; but I see you are an ignorant people.' 23 And so, when they beheld it in the shape of a dense cloud approaching their valleys, they exclaimed, "This is but a heavy cloud which will bring us [welcome] rain!" [But Hud said:] "Nay, but it is the very thing which you [so contemptuously] sought to hasten - a wind bearing grievous suffering, 24 Destroying everything by the command of its Lord, so they became such that naught could be seen except their dwellings. Thus do We reward the guilty people. 25 We had established them more firmly in the land than you are. We had given them ears, eyes, and hearts but none of their ears, eyes, and hearts proved to be of any benefit to them; they rejected the revelations of God and the torment which they mocked brought upon them utter destruction. 26