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 if they should come upon us, they will stone us to death or force us to revert to their faith whereafter we shall never prosper." 20 Thus We disclosed things to them so that they might know that God's promise was true and there was no doubt about the Hour [Judgement Day]. The people argued about them among themselves. They said, "Build a monument over them. Their Lord knows best concerning them." Those who prevailed in their affair said, "Let us surely build a place of worship over them." 21 Some will say concerning them: "They were three and their dog, the fourth"; and some will say: "They were five, and their dog, the sixth" -- all this being merely guesswork; and still others will say: "They were seven, and their dog, the eighth." Say: "My Lord knows their number best. Only a few know their correct number. So do not dispute concerning their number, but stick to what is evident, and do not question anyone about them." 22