بَلِ السَّاعَةُ مَوْعِدُهُمْ وَالسَّاعَةُ اَدْهٰى وَاَمَرُّ ( القمر: ٤٦ )
Balis Saa'atu maw'iduhum was Saa'atu adhaa wa amarr (al-Q̈amar 54:46)
But the Hour is their appointment [for due punishment], and the Hour is more disastrous and more bitter. (Al-Qamar  : 46)
1 Mufti Taqi Usmani
Rather the Hour (of judgment) is their appointed time (for their full recompense), and the Hour is more calamitous and much more bitter.