And just as We made them sleep and preserved them this long period We resurrected them from their sleep on their form without change; so that some of them ask others: "How much of the time did we stay sleeping here?" so some of them said: "We stayed a day or part of a day," and others said the matter was confused upon them: "Delegate the knowledge of that to Allah, for your Lord is more knowing with the time which you stayed it, so send one of you with these silver coins of yours to our city then let him look: which of the people of the city is more lawful and better in food? then let him come to you with a provision from it, and let him be gentle in his purchase with the seller such that we are not disclosed, and our matter appear, and let him not make anyone from the people recognize you."