Concise Quran Commentary
Those ranks are Gardens of Eternity with streams flowing under their palaces, and there they will stay there forever. That is the reward of those who purify themselves from disbelief and sins.
Tafsir for this Ayah
Surah 20 : Ayah 76
Surah 20 : Ayah 76
جَنَّـٰتُ عَدْنٍ تَجْرِى مِن تَحْتِهَا ٱلْأَنْهَـٰرُ خَـٰلِدِينَ فِيهَا ۚ وَذَٰلِكَ جَزَآءُ مَن تَزَكَّىٰ
Gardens of Eternity, under which rivers flow, abiding therein forever. Such is the reward of those who purify themselves[20].