۞ Say: "Do you refuse to believe in Him who created the earth in two spans of time, and set up compeers to Him, the Lord of all the worlds? 9 And in it He placed mountains as anchors from above it, and blessings in it, and appointed the sustenance for those who dwell in it – all this in four days; a proper answer to those who question. 10 Then He turned to the heaven while it was all smoke. He said to the heaven and the earth: “Come (into being), willingly or unwillingly.” They said: “Here we come (into being) in willing obeisance.” 11 So He determined them as seven heavens in two days, and revealed its commandment in every heaven.' 12 If even then they turn away, tell them: "I forewarn you of a terrible punishment like the thunderbolt that fell upon the 'Ad and Thamud." 13 When their apostles came to them from before them and from behind them, saying, Serve nothing but Allah, they said: If our Lord had pleased He would certainly have sent down angels, so we are surely unbelievers in that with which you are sent. 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 Then, on the ominous days, We loosed against them a howling wind that We might let them taste the punishment of humiliation in this life; but more humiliating will be the punishment of the Everlasting Life and they will not be helped. 16 And as for Thamud, We guided them, but they preferred blindness over guidance, so the thunderbolt of humiliating punishment seized them for what they used to earn. 17 And We delivered those who believed and had been fearing. 18