النساۤء — An-Nisa' Ayat 155
فَبِمَا نَقْضِهِمْ مِّيْثَاقَهُمْ وَكُفْرِهِمْ بِاٰيٰتِ اللّٰهِ وَقَتْلِهِمُ الْاَنْۢبِيَاۤءَ بِغَيْرِ حَقٍّ وَّقَوْلِهِمْ قُلُوْبُنَا غُلْفٌ ۗ بَلْ طَبَعَ اللّٰهُ عَلَيْهَا بِكُفْرِهِمْ فَلَا يُؤْمِنُوْنَ اِلَّا قَلِيْلًاۖ
Fabimā naqḍihim mīṡāqahum wa kufrihim bi'āyātillāhi wa qatlihimul-ambiyā'a bigairi ḥaqqiw wa qaulihim qulūbunā gulf(un), bal ṭaba‘allāhu ‘alaihā bikufrihim falā yu'minūna illā qalīlā(n).
"And [We cursed them] for their breaking of the covenant and their disbelief in the signs of Allah and their killing of the prophets without right and their saying, "Our hearts are wrapped". Rather, Allah has sealed them because of their disbelief, so they believe not, except for a few."