﴿ كَلَّآ إِنَّ كِتَٰبَ ٱلْفُجَّارِ لَفِى سِجِّينٍۢ ﴾

“NAY, VERILY, the record of the wicked is indeed [set down] in a mode inescapable!”

Nay! verily the record of the profligates that is to say the record of the deeds of the disbelievers is in Sijjīn — this is said to be a book containing the record of all the deeds of the devils and the disbelievers; but it is also said to be a location in the lowermost part of the seventh earth the place of Satan and his hosts.