Qur'an 18:12 · Al-Kahf

ثُمَّ بَعَثْنَٰهُمْ لِنَعْلَمَ أَىُّ ٱلْحِزْبَيْنِ أَحْصَىٰ لِمَا لَبِثُوٓا۟ أَمَدًۭا

(12) 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.