Surah Al-Muddaththir — Ayah 26

فَقَالَ إِنْ هَـٰذَآ إِلَّا سِحْرٌ يُؤْثَرُ

And said, "This is not but magic imitated [from others].

إِنْ هَـٰذَآ إِلَّا قَوْلُ ٱلْبَشَرِ

This is not but the word of a human being."

وَمَآ أَدْرَىٰكَ مَا سَقَرُ

And what can make you know what is Saqar?

لَا تُبْقِى وَلَا تَذَرُ

It lets nothing remain and leaves nothing [unburned],