The Day of Judgment (Yawm ad-Din)

مَـٰلِكِ يَوْمِ ٱلدِّينِ

Sovereign of the Day of Recompense.

وَلِلَّهِ مَا فِى ٱلسَّمَـٰوَٰتِ وَمَا فِى ٱلْأَرْضِ لِيَجْزِىَ ٱلَّذِينَ أَسَـٰٓـُٔوا۟ بِمَا عَمِلُوا۟ وَيَجْزِىَ ٱلَّذِينَ أَحْسَنُوا۟ بِٱلْحُسْنَى

And to Allāh belongs whatever is in the heavens and whatever is in the earth - that He may recompense those who do evil with [the penalty of] what they have done and recompense those who do good with the best [reward] -

وَٱلَّذِينَ يُصَدِّقُونَ بِيَوْمِ ٱلدِّينِ

And those who believe in the Day of Recompense

ثُمَّ مَآ أَدْرَىٰكَ مَا يَوْمُ ٱلدِّينِ

Then, what can make you know what is the Day of Recompense?