Surah Al-Mulk 67:7

إِذَآ أُلْقُوا۟ فِيهَا سَمِعُوا۟ لَهَا شَهِيقًا وَهِىَ تَفُورُ

When they are thrown into it, they hear from it a [dreadful] inhaling while it boils up.

Translation: Saheeh International

Tafsir

When they are flung into it they hear it blaring producing a horrid sound like that of an ass as it seethes

Excerpt from Tafsir al-Jalalayn, commentary on 67:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.