Surah Sad 38:57

هَـٰذَا فَلْيَذُوقُوهُ حَمِيمٌ وَغَسَّاقٌ

This - so let them taste it - is scalding water and [foul] purulence.

Translation: Saheeh International

Tafsir

This chastisement — inferred as so by what follows — let them then taste it burning hot water and pus read ghasāq or ghassāq the festering matter excreted by the inhabitants of the Fire;

Excerpt from Tafsir al-Jalalayn, commentary on 38:57, via Quran.com. The reader has the full commentary and 9 more tafsirs.