۞ Say thou: are ye indeed those who disbelieve in Him who hath created the earth in two days, and set up unto Him peers? That is the Lord of the worlds. 9 He placed therein (i.e. the earth) firm mountains from above it, and He blessed it, and measured therein its sustenance (for its dwellers) in four Days equal (i.e. all these four 'days' were equal in the length of time), for all those who ask (about its creation). 10 And He [it is who] applied His design to the skies, which were [yet but] smoke; and He [it is who] said to them and to the earth, "Come [into being,] both of you, willingly or unwillingly!" - to which both responded, "We do come in obedience." 11 So He ordained them seven heavens in two periods, and revealed in every heaven its affair; and We adorned the lower heaven with brilliant stars and (made it) to guard; that is the decree of the Mighty, the Knowing. 12 If they ignore (your message), tell them, "I have warned you against a destructive blast of sound like that which struck the people of `Ad and Thamud. 13 Their apostles came to them one after the other (saying): "Do not worship any one but God." They said: "If our Lord had pleased He would have sent the angels down. We reject what is sent with you." 14 So regarding the A’ad, they were haughty in the land without right, and they said, “Who is more powerful than us?” Did they not realise that Allah, Who created them, is more powerful than them? And they used to deny Our signs. 15 We sent upon them a violent wind during a few ill-fated days to make them suffer a disgraceful torment in this life. Their torment in the life to come will be even more disgraceful and they will not receive any help. 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 We only rescued the believers who had fear of God. 18