Sijjin is a place mentioned in the Quran (Surah al-Mutaffifin, 83:7-9) as the repository where the record of the wicked is kept. Allah declares: "No indeed! The record of the wicked is in Sijjin. And what can make you know what is Sijjin? It is a written record." The term conveys meanings of confinement, imprisonment, and deep darkness. Sijjin is described as a place of constriction and torment, located in the lowest depths-opposite to 'Illiyin, the elevated station of the righteous. According to scholars, Sijjin may refer to a specific location in Hell, a register containing the complete record of the wicked, or both. Ibn Kathir and other commentators explain that Sijjin is beneath the seventh earth, the dwelling place of Iblis and his hosts, and the destination of the rebellious. The souls of the wicked are confined there between death and resurrection, experiencing a foretaste of their ultimate punishment. The inscription of their deeds in Sijjin signifies that their actions are preserved for judgment and that their fate is sealed. The mention of Sijjin serves as a warning to those who defraud others, deny judgment, and persist in evil-the immediate context of the surah. For believers, awareness of Sijjin reinforces the reality of divine justice, the certainty of accountability, and the importance of righteous conduct. It balances hope in Allah's mercy with fear of His punishment, encouraging repentance and reform before the record reaches its final destination.