23:104
تَلْفَحُ وُجُوهَهُمُ ٱلنَّارُ وَهُمْ فِيهَا كَـٰلِحُونَ
talfaḥu wujūhahumu l-nāru wahum fīhā kāliḥūna
The Fire will sear their faces, and they therein will have taut smiles.
— Saheeh International
the Fire will scorch their faces and their lips will be twisted in pain.
— M. A. S. Abdel Haleem
The Fire will burn their faces, and therein they will grin, with displaced lips (disfigured).
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali