"There will be sent upon you both," meaning: the disbelievers from among the jinn and mankind, "a flame of fire and brass [nuhas]." The shuwadh [flame] is the fire that has no smoke, and the nuhas [brass] is the smoke that has no
﴿يُرْسَلُ عَلَيْكُمَا﴾ يَعْنِي: الْكفَّار من الْجِنّ وَالْإِنْس ﴿شُوَاظٌ مِّن نَّارٍ وَنُحَاسٌ﴾ الشُّواظ: اللهب الَّذِي لَا دُخان فِيهِ، والنحاس: الدُّخان الَّذِي لَا