Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:83:7 –

No! Indeed, the record of the wicked is in sijjeen.  

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.
القرآن:٨٣:٧ –

كَلَّا إِنَّ كِتَابَ الْفُجَّارِ لَفِي سِجِّينٍ  

{كلا} حقا {إن كتاب الفجَّار} أي كتاب أعمال {لفي سجّين} قيل هو كتاب جامع لأعمال الشياطين والكفرة، وقيل هو مكان أسفل الأرض السابعة وهو إبليس وجنوده.