۞ Tell them, (O Prophet): “Do you indeed disbelieve in Him and assign compeers to Him Who created the earth in two days? He is the Lord of all beings of the Universe. 9 And He made in it mountains above its surface, and He blessed therein and made therein its foods, in four periods: alike for the seekers. 10 Then He willed to the heaven when it was smoke, and to it and the earth He said: 'Come willingly, or unwillingly' 'We come willingly' they answered. 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 But if they turn away, tell them: “I warn you against a sudden scourge like that which struck Ad and Thamud.” 13 When their Messengers came to them from before them and behind them, (saying): 'Worship none except Allah' they answered: 'Had it been the will of our Lord, He would have sent down angels. So we disbelieve in the Message with which you were sent' 14 As for the tribe of 'Aad - they grew stiff-necked on the earth without justification, and said: who is mightier than we in strength? Saw they not that Allah who created them, He was Mightier than they in strength? And Our signs they were wont to gainsay. 15 We therefore sent a violent thunderstorm towards them in their days of misfortune, in order to make them taste a disgraceful punishment in the life of this world; and indeed the punishment of the Hereafter is more disgracing, and they will not be helped. 16 As for Thamud, We bestowed guidance upon them, but they preferred to remain blind rather than be guided. At last a humiliating scourge overtook them on account of their misdeeds. 17 And We delivered those who believed and used to keep their duty to Allah. 18