يُصْهَرُ بِهِۦ مَا فِى بُطُونِهِمْ وَٱلْجُلُودُ
English Translation
By which is melted that within their bellies and [their] skins.
English Transliteration
Yusharu bihi ma fee butoonihim waaljuloodu
Tafsir of Verse 20
whereby whatsoever is in their bellies and their skins shall be melted;
With it will be scalded what is within their bodies, as well as (their) skins.