Surah Al-Qamar, Verse 46

بَلِ ٱلسَّاعَةُ مَوۡعِدُهُمۡ وَٱلسَّاعَةُ أَدۡهَىٰ وَأَمَرُّ٤٦

bali l-sāʿatu mawʿiduhum wal-sāʿatu adhā wa-amarru

But the Hour is their appointment [for due punishment], and the Hour is more disastrous and more bitter.