Surah Al-Kahf 18:6

فَلَعَلَّكَ بَـٰخِعٌ نَّفْسَكَ عَلَىٰٓ ءَاثَـٰرِهِمْ إِن لَّمْ يُؤْمِنُوا۟ بِهَـٰذَا ٱلْحَدِيثِ أَسَفًا

Then perhaps you would kill yourself through grief over them, [O Muḥammad], if they do not believe in this message, [and] out of sorrow.

Translation: Saheeh International

Tafsir

Yet it may be that you will consume destroy yourself in their wake — following your being with them that is after they have left you — if they should not believe in this discourse in this Qur’ān out of grief out of rage and anguish on your part because of your eagerness that they believe asafan ‘out of grief’ is in …

Excerpt from Tafsir al-Jalalayn, commentary on 18:6, via Quran.com. The reader has the full commentary and 9 more tafsirs.