Quran 9:127 from Surah At-Tawba on Divine Marvels.
وَإِذَا مَآ أُنزِلَتۡ سُورَةٞ نَّظَرَ بَعۡضُهُمۡ إِلَىٰ بَعۡضٍ هَلۡ يَرَىٰكُم مِّنۡ أَحَدٖ ثُمَّ ٱنصَرَفُواْۚ صَرَفَ ٱللَّهُ قُلُوبَهُم بِأَنَّهُمۡ قَوۡمٞ لَّا يَفۡقَهُونَ
English translation: And whenever And whenever is revealed a Surah look some of them to others Does see you any one Then they turn away Allah has turned away Allah has turned away their hearts because they (are) a people not they understand
Transliteration: wa-idha ma unzilat suratun nazara ba'duhum ila ba'din hal yarakum min ahadin thumma insarafu sarafa al-lahu qulubahum bi-annahum qawmun la yafqahuna