Surah Al-Ma'arij, ayah 28

إِنَّ عَذَابَ رَبِّهِمۡ غَيۡرُ مَأۡمُونٖ ٢٨

Inna 'adhāba rabbihim ghayru ma'mūn

Indeed, the punishment of their Lord is not that from which one is safe -