أَفَلَا يَتَدَبَّرُونَ ٱلۡقُرۡءَانَ أَمۡ عَلَىٰ قُلُوبٍ أَقۡفَالُهَآ
Afalaa yatadabbaroonal Qur-aana am 'alaa quloobin aqfaaluhaa
English Translation
Then do they not reflect upon the Qur'an, or are there locks upon [their] hearts
— Saheeh International