Al-Mutaffifin • EN-TAZKIRUL-QURAN
﴿ وَمَآ أَدْرَىٰكَ مَا سِجِّينٌۭ ﴾
“And what could make thee conceive what that that mode inescapable will be?”
Literally ‘A prison’. It means a certain place in which the record of the deeds of the wicked is preserved.