Surah Al-Baqarah (The Cow), Verse 88

وَقَالُوْا قُلُوْبُنَا غُلْفٌ بَلْ لَّعَنَهُمُ اللّٰهُ بِكُفْرِهِمْ فَقَلِیْلًا مَّا یُؤْمِنُوْنَ ۟

Wa qaaloo quloobunaa ghulf; bal la'anahumul laahu bikufrihim faqaleelam maa yu'minoon

“They say, "Our hearts are the wrappings (which preserve Allah's Word: we need no more)." Nay, Allah's curse is on them for their blasphemy: Little is it they believe.”

Quran 2:88 (Yusuf Ali Translation)