۞ Say, "Do you indeed disbelieve in He who created the earth in two days and attribute to Him equals? That is the Lord of the worlds." 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 Moreover He comprehended in His design the sky, and it had been (as) smoke: He said to it and to the earth: "Come ye together, willingly or unwillingly." They said: "We do come (together), in willing obedience." 11 In two days He determined them seven heavens, and He revealed to each heaven its commands. We decorated the lowest heaven with lamps and preserve them. Such is the decree of the Almighty, the Knower. 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 When the Messengers (of Allah) came to them from the front and from the rear, saying: “Do not serve any but Allah”; they said: “Had our Lord so willed, He would have sent down angels. So we deny the Message you have brought.” 14 Now as for [the tribe of] Ad, they walked arrogantly on earth, [offending] against all right, and saying, "Who could have a power greater than ours?" Why - were they, then, not aware that God, who created them, had a power greater than theirs? But they went on rejecting Our messages; 15 So We sent upon them furious wind in days of evil omen (for them) that We might give them a taste of disgracing torment in this present worldly life, but surely the torment of the Hereafter will be more disgracing, and they will never be helped. 16 And as to Samood, We showed them the right way, but they chose error above guidance, so there overtook them the scourge of an abasing chastisement for what they earned. 17 And We saved those who believed and used to fear Allah, keep their duty to Him and avoid evil. 18