﴿ فَلَعَلَّكَ بَٰخِعٌۭ نَّفْسَكَ عَلَىٰٓ ءَاثَٰرِهِمْ إِن لَّمْ يُؤْمِنُوا۟ بِهَٰذَا ٱلْحَدِيثِ أَسَفًا ﴾

“But wouldst thou, perhaps, torment thyself to death with grief over them if they are not willing to believe in this message?”

Please check ayah 18:8 for complete tafsir.