We relate to thee their story in truth: they were youths who believed in their Lord, and We advanced them in guidance: 13 And strengthened their hearts when they stood up and said: "Our Lord is the Lord of the heavens and the earth. We shall invoke no god beside Him, for we shall have uttered a blasphemy then. 14 These, our nation have taken to themselves gods, other than Allah. Why do they not bring some clear authority regarding them! Who does greater evil than he who forges a lie against Allah' 15 And now that you have dissociated yourselves from them and from whatever they worship beside Allah, go and seek refuge in the Cave. Your Lord will extend His mercy to you and will provide for you the means for the disposal of your affairs." 16 ۞ And [had you been present], you would see the sun when it rose, inclining away from their cave on the right, and when it set, passing away from them on the left, while they were [laying] within an open space thereof. That was from the signs of Allah. He whom Allah guides is the [rightly] guided, but he whom He leaves astray - never will you find for him a protecting guide. 17