One would think them (the youths) awake while, in fact, they were sleeping. We turned their bodies from right to left and their dog stretched its front legs on the ground. Had one looked them over, he would have run away from them in terror. 18 In the course of time, We raised them up again so that they might question one another. One of them asked, "How long have you stayed [here]?" They said, "We have stayed a day, or part of a day." But others said, "Your Lord knows best how long you have stayed here. Let one of you go then with these silver coins to the town, and let him find out what food is purest there, and bring you back a supply of it. Let him conduct himself with caution and not disclose your whereabouts to anyone: 19 For they, if they should come to know of you, will stone you or turn you back to their religion; then ye will never prosper. 20 AND IN THIS way have We drawn [people's] attention to their story, so that they might know - whenever they debate among themselves as to what happened to those [Men of the Cave] that God's promise [of resurrection] is true, and that there can be no doubt as to [the coming of] the Last Hour. And so, some [people] said: "Erect a building in their memory; God knows best what happened to them." Said they whose opinion prevailed in the end: "Indeed, we must surely raise a house of worship in their memory!" 21 Some will say, "They were three, the fourth was their dog," and others will say, "They were five, the sixth was their dog," guessing at random. And yet others say, "They were seven, the eighth was their dog." Say, "My Lord knows best their number." Only a few know anything about them. Therefore, do not enter into controversies over them, nor seek information about them from any of them; 22