Quran 88:24 from Surah Al-Ghaashiya on Divine Marvels.
فَيُعَذِّبُهُ ٱللَّهُ ٱلۡعَذَابَ ٱلۡأَكۡبَرَ
English translation: Then will punish him Allah (with) the punishment greatest
Transliteration: fayu'adhibuhu al-lahu al-'adhaba al-akbara