۞ Say, "Do you really disbelieve in the One Who created the earth in two days? Do you consider things equal to Him? He is the Lord of the Universe. 9 And He placed therein mountains firmly rooted rising above it, and blessed it, and ordained therein the sustenance thereof, all this in four days, complete; this for the inquirers. 10 Thereafter turned He to the heaven and it was as smoke, and said unto it and unto the earth: come ye twain, willingly or loth. They said: we come willingly. 11 So He determined them as seven heavens in two days, and revealed its commandment in every heaven.' 12 And We adorned the lower heaven with lamps, and to reserve; that is the ordaining of the All-mighty, the All-knowing. But if they turn away, then say, 'I warn you of a thunderbolt like to the thunderbolt of Ad and Thamood.' 13 Recall what time the apostles came unto them from before them and behind them, saying: worship none save Allah. They said: had our Lord listed, He surely would have sent down angels, so verily in that wherewith ye have been sent we are disbelievers altogether. 14 As for Ad, they waxed proud in the land without justification and said: “Who is greater than we in strength?” Did they not see that Allah, Who created them, is greater in strength than they? They continued to deny Our Signs, 15 Therefor We let loose on them a raging wind in evil days, that We might make them taste the torment of disgrace in the life of the world. And verily the doom of the Hereafter will be more shameful, and they will not be helped. 16 And as for [the tribe of] Thamud, We offered them guidance, but they chose blindness in preference to guidance: and so the thunderbolt of shameful suffering fell upon them as an outcome of all [the evil] that they had wrought; 17 and We saved those who believed and feared Allah. 18