In other words...

In other words, in order to put an end to the different debates of people in this concern, He commands His Messenger (S) as follows: “Say: ‘Allah knows best how long they remained...” Then, the reason of this statement comes forth, when the verse continues saying: “…To Allah belongs the Unseen of the heavens and the earth...” He Who is aware of what is concealed and what is manifest in the whole world of existence, how may it be that He remains unaware of the length of the time of the stop of the of the Cave?

The verse says: “…How clear of sight is He and keen of hearing!…” That is why they (the dwellers of…