Al-Kahf 12

ثُمَّ بَعَثْنَـٰهُمْ لِنَعْلَمَ أَىُّ ٱلْحِزْبَيْنِ أَحْصَىٰ لِمَا لَبِثُوٓا۟ أَمَدًا

thumma baʿathnāhum linaʿlama ayyu l-ḥiz'bayni aḥṣā limā labithū amadan

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.