Translation of the verse 12 from Surah Al-Kahf : Number of verses 110 - - page 294 - Part 15.
Then We raised them up (from their sleep), that We might test which of the two parties was best at calculating the time period that they had tarried.
Then We awakened them that We might show which of the two factions was most precise in calculating what [extent] they had remained in time.
(18:12) Then We raised them up in order to test which of them were able to calculate correctly the period of their stay there.