الْمُرْسَلَاتُ

Al-Mursalat 77:14

Read full Surah Al-Mursalat

وَمَآ أَدْرَىٰكَ مَا يَوْمُ ٱلْفَصْلِ١٤

And what can make you know what is the Day of Judgement?

— Saheeh International