ثُمَّ بَعَثْنَاهُمْ لِنَعْلَمَ أَيُّ الْحِزْبَيْنِ أَحْصَىٰ لِمَا لَبِثُوا أَمَدًا

Surah Al-Kahf : 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.

Main.lang.desc.tafsir:ayahs:h2