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 We roused them from their sleep so that they would question each other about their stay in the cave. One of them said, "How long do you think we have stayed here?" They replied, "A day or part of a day." They added, " Your Lord knows better how long we have stayed here. Let us send one of us with this money to the city to get some pure food so that we might eat. He should be careful so that no one will know about us. If they were to recognize us, 19 for if they find you out, they will stone you to death, or force you back into their faith. In that case you would never prosper." 20 And so We made them (the unbelievers) stumble upon them, so that they might know that the promise of Allah is true and that there is no doubt about the Hour. They argued among themselves over their affair, then (the unbelievers) said: 'Build a building over them (their remains). Their Lord knows best who they were. 'But those who prevailed over the matter said; 'We will build around them a Mosque' 21 (Some) say: (They are) three, the fourth of them being their dog; and (others) say: Five, the sixth of them being their dog, making conjectures at what is unknown; and (others yet) say: Seven, and the eighth of them is their dog. Say: My Lord best knows their number, none knows them but a few; therefore contend not in the matter of them but with an outward contention, and do not question concerning them any of them. 22