فَلَعَلَّكَ بَاخِعٌ نَّفۡسَكَ عَلٰ٘ي اٰثَارِهِمۡ اِنۡ لَّمۡ يُؤۡمِنُوۡا بِهٰذَا الۡحَدِيۡثِ اَسَفًا

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