Surah Ar-Rahman 55:35

يُرْسَلُ عَلَيْكُمَا شُوَاظٌ مِّن نَّارٍ وَنُحَاسٌ فَلَا تَنتَصِرَانِ

There will be sent upon you a flame of fire and smoke, and you will not defend yourselves.

Translation: Saheeh International

Tafsir

Against you will be unleashed a heat of fire shuwāz can either mean that the flame thereof has no smoke or that it does have it with it and a flash of brass without any flame and you will not be able to seek help you will not be able to defend yourselves against this nay it will drive you to the site of the Gathering.

Excerpt from Tafsir al-Jalalayn, commentary on 55:35, via Quran.com. The reader has the full commentary and 9 more tafsirs.