فَلَعَلَّكَ بَٰخِعٌ نَّفْسَكَ عَلَىٰٓ ءَاثَٰرِهِمْ إِن لَّمْ يُؤْمِنُوا۟ بِهَٰذَا ٱلْحَدِيثِ أَسَفًا

Then maybe you will kill yourself with grief, sorrowing after them, if they do not believe in this announcement.