And thou wouldst have deemed them waking though they were asleep, and We caused them to turn over to the right and the left, and their dog stretching out his paws on the threshold. If thou hadst observed them closely thou hadst assuredly turned away from them in flight, and hadst been filled with awe of them. 18 Likewise, We roused them in a miraculous way that they might question one another. One of them asked: "How long did you remain (in this state)?" The others said: "We remained so for a day or part of a day." Then they said: "Your Lord knows better how long we remained in this state. Now send one of you to the city with this coin of yours and let him see who has the best food, and let him buy some provisions from there. Let him be cautious and not inform anyone of our whereabouts. 19 For, if they appear in front of you, they will stone you to death or restore you to their religion. Then you will never prosper' 20 Thus did We inform the people about them that they may know the promise of God is true, and there is no doubt that the Hour will come. As they were arguing among themselves as to what should be done with them, (some) said: "Erect a monument over them. Their Lord is best cognisant of them." Those who prevailed, said: "We shall build a place of worship over their (sepulchre)." 21 (Some) say they were three, the dog being the fourth among them; (others) say they were five, the dog being the sixth,- doubtfully guessing at the unknown; (yet others) say they were seven, the dog being the eighth. Say thou: "My Lord knoweth best their number; It is but few that know their (real case)." Enter not, therefore, into controversies concerning them, except on a matter that is clear, nor consult any of them about (the affair of) the Sleepers. 22