[Machine] If there remain in Hell those who are to remain in it, they are placed in coffins of fire with nails of fire. That is mentioned twice or thrice before they see anyone in Hell being punished other than them. Then Abdullah recited, "For them therein is a roaring blast and they are in it neither hearing nor seeing" (Surah Al-'Anbya', 21:101).
إِذَا بَقِيَ فِي النَّارِ مَنْ يُخَلَّدُ فِيهَا جُعِلُوا فِي تَوَابِيتَ مِنْ نَارٍ فِيهَا مَسَامِيرُ مِنْ نَارٍ قَالَ ذَلِكَ مَرَّتَيْنِ أَوْ ثَلَاثًا فَلَا يَرَوْنَ أَحَدًا فِي النَّارِ يُعَذَّبُ غَيْرُهُمْ ثُمَّ قَرَأَ عَبْدُ اللهِ {لَهُمْ فِيهَا زَفِيرٌ وَهُمْ فِيهَا لَا يَسْمَعُونَ}