Dr. Mustafa Khattab, the Clear Quran - Surah Al-Haqqah, ayah 50

Translation of Surah Al-Haqqah, ayah 50 (69:50)

وَإِنَّهُۥ لَحَسۡرَةٌ عَلَى ٱلۡكَٰفِرِينَ ٥٠
and it will surely be a source of regret for the disbelievers.