Surah Al-Qamar — Ayah 46 (54:46)
بَلِ ٱلسَّاعَةُ مَوۡعِدُهُمۡ وَٱلسَّاعَةُ أَدۡهَىٰ وَأَمَرُّ ٤٦
English translation (Saheeh International)
But the Hour is their appointment [for due punishment], and the Hour is more disastrous and more bitter.
Brief commentary
In fact, the Hour that they deny is the appointed time when they will be punished. The Hour is more severe and bitter than the punishment of the world that they received on the day of Badr.