Taha 20:76

جَنَّـٰتُ عَدْنٍ تَجْرِى مِن تَحْتِهَا ٱلْأَنْهَـٰرُ خَـٰلِدِينَ فِيهَا ۚ وَذَٰلِكَ جَزَآءُ مَن تَزَكَّىٰ

Jannātu ʿadnin tajrī min taḥtihā l-anhāru khālidīna fīhā wadhālika jazāu man tazakkā

Gardens of perpetual residence beneath which rivers flow, wherein they abide eternally. And that is the reward of one who purifies himself.