Eternal life and immortality in Jannah

أَعَدَّ ٱللَّهُ لَهُمْ جَنَّـٰتٍ تَجْرِى مِن تَحْتِهَا ٱلْأَنْهَـٰرُ خَـٰلِدِينَ فِيهَا ۚ ذَٰلِكَ ٱلْفَوْزُ ٱلْعَظِيمُ

Allāh has prepared for them gardens beneath which rivers flow, wherein they will abide eternally. That is the great attainment.