ثُمَّ أَخَذْتُ ٱلَّذِينَ كَفَرُوا ۖ فَكَيْفَ كَانَ نَكِيرِ

Thumma akhathtu allatheenakafaroo fakayfa kana nakeer

Then I seized the ones who disbelieved, and how [terrible] was My reproach.