প্রজ্বলিত অগ্নি।

إِنَّا أَعْتَدْنَا لِلْكَافِرِينَ سَلَاسِلَ وَأَغْلَالًا وَسَعِيرًا
Undoubtedly, We have already prepared for the infidels’ chains and iron collars and a blazing fire.
Quran 76: 4