2 verses have
بَلْ
in Edition Uthmani / Al-Muddaththir (The Cloaked One)

52:74بَلْ يُرِيدُ كُلُّ ٱمْرِئٍۢ مِّنْهُمْ أَن يُؤْتَىٰ صُحُفًۭا مُّنَشَّرَةًۭ

53:74كَلَّا ۖ بَل لَّا يَخَافُونَ ٱلْءَاخِرَةَ