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.
tabarani:9015ʿAbdullāh b. Muḥammad b. Saʿīd b. Abū Maryam > Muḥammad b. Yūsuf al-Firyābī > Sufyān > Salamah b. Kuhayl > Khaythamah

[Machine] In His saying, "Surely the hypocrites will be in the lowest depths of Hell," He said, "Coffins of iron will be sealed upon them."  

الطبراني:٩٠١٥حَدَّثَنَا عَبْدُ اللهِ بْنُ مُحَمَّدِ بْنِ سَعِيدِ بْنِ أَبِي مَرْيَمَ ثنا مُحَمَّدُ بْنُ يُوسُفَ الْفِرْيَابِيُّ ثنا سُفْيَانُ عَنْ سَلَمَةَ بْنِ كُهَيْلٍ عَنْ خَيْثَمَةَ عَنْ عَبْدِ اللهِ بْنِ مَسْعُودٍ

فِي قَوْلِهِ {§إِنَّ الْمُنَافِقِينَ فِي الدَّرْكِ} الْأَسْفَلِ مِنَ النَّارِ قَالَ «تَوَابِيتُ مِنْ حَدِيدٍ تَطْبُقُ عَلَيْهِمْ»