Dr. Mustafa Khattab, the Clear Quran - Surah Al-Qamar, ayah 46

Translation of Surah Al-Qamar, ayah 46 (54:46)

بَلِ ٱلسَّاعَةُ مَوۡعِدُهُمۡ وَٱلسَّاعَةُ أَدۡهَىٰ وَأَمَرُّ ٤٦
Better yet, the Hour is their appointed time—and the Hour will be most catastrophic and most bitter.