Dalil

Quran Al-Insan 76:31

يُدۡخِلُ مَن يَشَآءُ فِي رَحۡمَتِهِۦۚ وَٱلظَّٰلِمِينَ أَعَدَّ لَهُمۡ عَذَابًا أَلِيمَۢا

Translation

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