Quran 9:125 from Surah At-Tawba on Divine Marvels.
وَأَمَّا ٱلَّذِينَ فِي قُلُوبِهِم مَّرَضٞ فَزَادَتۡهُمۡ رِجۡسًا إِلَىٰ رِجۡسِهِمۡ وَمَاتُواْ وَهُمۡ كَٰفِرُونَ
English translation: But as for those in their hearts (is) a disease (it) increases them (in) evil to their evil And they die while they (are) disbelievers
Transliteration: wa-amma alladhina fi qulubihim maradun fazadathum rij'san ila rij'sihim wamatu wahum kafiruna