Surah Al-Kahf 18:12 — سُورَةُ الكَهۡفِ

ثُمَّ بَعَثْنَٰهُمْ لِنَعْلَمَ أَىُّ ٱلْحِزْبَيْنِ أَحْصَىٰ لِمَا لَبِثُوٓا۟ أَمَدًۭا ﴿12﴾

And afterward We raised them up that We might know which of the two parties would best calculate the time that they had tarried.

Surah Al-Kahf (The Cave), ayah 12 of 110. Recited by Sa'ud Ash-Shuraym (سعود الشريم).