Surah At-Tur (The Mount Tur), Verse 47

وَاِنَّ لِلَّذِیْنَ ظَلَمُوْا عَذَابًا دُوْنَ ذٰلِكَ وَلٰكِنَّ اَكْثَرَهُمْ لَا یَعْلَمُوْنَ ۟

Wa inna lillazeena zalamoo 'azaaban doona zalika wa laakinna aksarahum laa ya'lamoon

“And verily, for those who do wrong, there is another punishment besides this: But most of them understand not.”

Quran 52:47 (Yusuf Ali Translation)