قُلُوبُهُمۡ
qulūbuhum
their hearts
Frequency
Appears 8 times in the Quran
Example in the Quran
Surah Al-An'am — Al-An'am 6:43
فَلَوۡلَآ إِذۡ جَآءَهُم بَأۡسُنَا تَضَرَّعُواْ وَلَٰكِن قَسَتۡ قُلُوبُهُمۡ وَزَيَّنَ لَهُمُ ٱلشَّيۡطَٰنُ مَا كَانُواْ يَعۡمَلُونَ
Why did they not humble themselves when We made them suffer? Instead, their hearts were hardened, and Satan made their misdeeds appealing to them.