Surah Ar-Ra'd (The Thunder), Verse 34

لَهُمْ عَذَابٌ فِی الْحَیٰوةِ الدُّنْیَا وَلَعَذَابُ الْاٰخِرَةِ اَشَقُّ وَمَا لَهُمْ مِّنَ اللّٰهِ مِنْ وَّاقٍ ۟

Lahum 'azaabun fil hayaatid dunyaa wa la'azaabul Aakhirati ashaq, wa maa lahum minal laahi min-waaq

“For them is a penalty in the life of this world, but harder, truly, is the penalty of the Hereafter: and defender have they none against Allah.”

Quran 13:34 (Yusuf Ali Translation)