Luqman 31:9. Juz 21, page 411.
خَـٰلِدِينَ فِيهَا ۖ وَعْدَ ٱللَّهِ حَقًّا ۚ وَهُوَ ٱلْعَزِيزُ ٱلْحَكِيمُ٩
Wherein they will abide. It is a promise of Allah in truth. He is the Mighty, the Wise.
Luqman 31:9, translated by Marmaduke Pickthall