Al-Kahf 18:19

Wakathalika baAAathnahumliyatasaaloo baynahum qala qa-ilun minhumkam labithtum qaloo labithna yawman aw baAAdayawmin qaloo rabbukum aAAlamu bima labithtum fabAAathooahadakum biwariqikum hathihi ila almadeenatifalyanthur ayyuha azka taAAamanfalya/tikum birizqin minhu walyatalattaf walayushAAiranna bikum ahada

And similarly, We awakened them that they might question one another. Said a speaker from among them, "How long have you remained [here]?" They said, "We have remained a day or part of a day." They said, "Your Lord is most knowing of how long you remained. So send one of you with this silver coin of yours to the city and let him look to which is the best of food and bring you provision from it and let him be cautious. And let no one be aware of you.

In this way We raised them up until they asked each other. One of them said, “How long did you tarry?” They said, “A day, or part of a day.” They said, “Your Lord knows best how long you tarried.” So, send one of you with this silver (coin) of yours to the city and let him look around which of the eatables are the purest and let him bring you some food from there. And he must act in polite manner, and must not let anyone know about you.