74:27
وَمَآ أَدْرَىٰكَ مَا سَقَرُ ٢٧
Saheeh International
And what can make you know what is Saqar?
Tafsir of "Ibn Kathir" (English)
I will cast him into Saqar.meaning, `I will engulf him in it from all his sides.'Then Allah says,وَمَا أَدْرَاكَ مَا سَقَرُ