Surat Fuşşilat - سورة فصلت

إِنَّ الَّذِينَ كَفَرُوا بِالذِّكْرِ لَمَّا جَاءَهُمْ ۖ وَإِنَّهُ لَكِتَابٌ عَزِيزٌ

Muhsin Khan: Verily, those who disbelieved in the Reminder (i.e. the Quran) when it came to them (shall receive the punishment). And verily, it is an honourable respected Book (because it is Allah's Speech, and He has protected it from corruption, etc.). (See V.15:9]