Surah As-Saffat 37:63

إِنَّا جَعَلْنَـٰهَا فِتْنَةً لِّلظَّـٰلِمِينَ

Indeed, We have made it a torment for the wrongdoers.

Translation: Saheeh International

Tafsir

We have indeed made it for that reason sc. its being a tree in the Fire a trial for the wrongdoers? namely for the disbelievers of Mecca for they said ‘Fire consumes trees so how can it make them grow forth?’

Excerpt from Tafsir al-Jalalayn, commentary on 37:63, via Quran.com. The reader has the full commentary and 9 more tafsirs.