18. Al-Kahf (The Cave)

Surah: 18   Aya: 22

22. Sayaqooloona thalathatun rabiAAuhum kalbuhum wayaqooloona khamsatun sadisuhum kalbuhum rajman bialghaybi wayaqooloona sabAAatun wathaminuhum kalbuhum qul rabbee aAAlamu biAAiddatihim ma yaAAlamuhum illa qaleelun fala tumari feehim illa miraan thahiran wala tastafti feehim minhum ahadan
  

  Translation

22. (Some) say they were three, the dog being the fourth among them; (others) say they were five, the dog being the sixth, guessing at the unseen; (yet others) say they were seven, the dog being the eighth. Say (O Muhammad SAW): "My Lord knows best their number; none knows them but a few." So debate not (about their number, etc.) except with the clear proof (which We have revealed to you). And consult not any of them (people of the Scripture, Jews and Christians) about (the affair of) the people of the Cave.