Surah Al-Insan 76:31

يُدْخِلُ مَن يَشَآءُ فِى رَحْمَتِهِۦ ۚ وَٱلظَّـٰلِمِينَ أَعَدَّ لَهُمْ عَذَابًا أَلِيمًۢا

He admits whom He wills into His mercy; but the wrongdoers - He has prepared for them a painful punishment.

Translation: Saheeh International

Tafsir

He admits whomever He will into His mercy His Paradise namely the believers; and as for the evildoers al-zālimīna is in the accusative because of an implied verb that is to say a‘adda ‘He has prepared’ as explained by what follows He has prepared for them a painful chastisement — these are the disbelievers.

Excerpt from Tafsir al-Jalalayn, commentary on 76:31, via Quran.com. The reader has the full commentary and 9 more tafsirs.