(Muhammad), ask them, "Who gives you sustenance from the heavens and earth, who truly possesses (your) hearing and seeing abilities, who brings the living out of the dead and the dead out of the living and who regulates (the whole Universe)? They will reply, "God." Ask them, "Why, then, do you not have fear of Him?" 31 Such then is God, your true Lord; and when truth is gone what is left but error? So why do you turn away? 32 Thus the word of thy Lord is realized against the ungodly that they believe not. 33 Say: Is there any one among your associates who can bring into existence the creation in the first instance, then reproduce it? Say: Allah brings the creation into existence, then He reproduces it; how are you then turned away? 34 Say: 'Is there any of your associates who guides to the truth?' Say: 'God -- He guides to the truth; and which is worthier to be followed -- He who guides to the truth, or he who guides not unless he is guided? What then ails you, how you judge?' 35 Most of the unbelievers follow only conjecture which certainly cannot serve as a substitute for the Truth. God knows well what they do. 36 This Koran could not have been forged by other than Allah. It confirms what was before it; a distinguishing Book, in which there is no doubt, from the Lord of all the worlds. 37 Or say they: He hath invented it? Say: Then bring a surah like unto it, and call (for help) on all ye can besides Allah, if ye are truthful. 38 They call a lie something that is beyond the limit of their knowledge and whose interpretation has not yet been revealed. Some people who lived before them also called Our revelations lies. Consider how terrible was the end of the unjust people! 39 Of those some will believe and others will not. Your Lord knows best the mischief-makers. 40