Surah Al-Haqqah, ayah 50

وَإِنَّهُۥ لَحَسۡرَةٌ عَلَى ٱلۡكَٰفِرِينَ ٥٠

Wa innahū lahasratun 'alal-kāfirīn

And indeed, it will be [a cause of] regret upon the disbelievers.