Al-Kāfi

Hadith 918
deathsoulhellfireimam-aliahl-al-bayt
3ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ أَحْمَدَ بِإِسْنَادٍ لَهُ قَالَ قَالَ أَمِيرُ الْمُؤْمِنِينَ (عَلَيْهِ الْسَّلام) شَرُّ بِئْرٍ فِي النَّارِ بَرَهُوتُ الَّذِي فِيهِ أَرْوَاحُ الْكُفَّارِ.
3. Muhammad ibn Yahya has narrated from Muhammad ibn Ahmad through the chain of his narrators has said the following: “’Amir al-Mu’minin (a.s.), has said, ‘The worst well in the fire is the well of Barahut in which the souls (spirits) of unbelievers live.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī