Surah Al-Kahf, ayah 6

18:6

فَلَعَلَّكَ بَٰخِعٞ نَّفۡسَكَ عَلَىٰٓ ءَاثَٰرِهِمۡ إِن لَّمۡ يُؤۡمِنُواْ بِهَٰذَا ٱلۡحَدِيثِ أَسَفًا ٦

Fala'allaka bākhi'un nafsaka 'alā āthārihim il lam yu'minū bihādhal-hadīthi asafā

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