Art thou not aware of thy Sustainer [through His works]? - how He causes the shadow to lengthen [towards the night] when, had He so willed, He could indeed have made it stand still: but then, We have made the sun its guide; 45 We then gradually withdraw it towards Us. 46 It is He who has appointed the night a mantle for you and sleep for a rest. The day He has appointed for rising. 47 And He it is who sends forth the winds as a glad tiding of His coming grace; and [thus, too,] We cause pure water to descend from the skies, 48 That We may give life thereby to a dead land, and We give to drink thereof many of the cattle and men that We had created. 49 And We have certainly distributed it among them that they might be reminded, but most of the people refuse except disbelief. 50 And had We willed, We would have raised a warner in every town. 51 So do not obey the disbelievers, and strive against them with the Qur'an a great striving. 52 ۞ It is He Who has let free the two bodies of flowing water: One palatable and sweet, and the other salt and bitter; yet has He made a barrier between them, a partition that is forbidden to be passed. 53 It is He who has created the human being from water to have relationships of both lineage and wedlock. Your Lord has all power. 54 But they worship rather than Allah that which does not benefit them or harm them, and the disbeliever is ever, against his Lord, an assistant [to Satan]. 55 We did not send you but as a bearer of glad tidings and as a warner. 56 Say: 'I demand of you no wage for this except for he who wishes to take the Path to his Lord' 57 Put thy trust in the Living God, the Undying, and proclaim His praise. Sufficiently is He aware of His servants sins 58 it is He who created the heavens and the earth and all that is between them in six Days [periods], then settled Himself on the throne -- the Gracious One. Ask any informed person about Him. 59 When it is said to them, "Prostrate to (Allah) Most Gracious!", they say, "And what is (Allah) Most Gracious? Shall we prostrate to that which thou commandest us?" And it increases their flight (from the Truth). ۩ 60