Al-Qari'ah 101:9

فَأَمَّا مَن ثَقُلَتْ مَوَازِينُهُ

Then as for one whose scales are heavy [with good deeds],

فَهُوَ فِي عِيشَةٍ رَّاضِيَةٍ

He will be in a pleasant life.

وَأَمَّا مَنْ خَفَّتْ مَوَازِينُهُ

But as for one whose scales are light,

وَمَا أَدْرَاكَ مَا هِيَهْ

And what can make you know what that is?

نَارٌ حَامِيَةٌ

It is a Fire, intensely hot.