52:47
وَإِنَّ لِلَّذِينَ ظَلَمُوا۟ عَذَابًا دُونَ ذَٰلِكَ وَلَـٰكِنَّ أَكْثَرَهُمْ لَا يَعْلَمُونَ
wa-inna lilladhīna ẓalamū ʿadhāban dūna dhālika walākinna aktharahum lā yaʿlamūna
Another punishment awaits the evildoers, though most of them do not realize it.
And verily, for those who do wrong, there is another punishment (i.e. the torment in this world and in their graves) before this; but most of them know not. (Tafsir At-Tabarî).