The Criterion - 25:16
They will have therein whatever they wish for eternity. This is the promise of your Lord that will surely be fulfilled.
Those who enter Paradise will abide there forever:
Prophet Hud/11:108
And those who deserve happiness will abide in Paradise as long as the heavens and the earth endure. Except if your Lord wills. This is an uninterrupted reward.
The Rocky Tract/15:47
We will remove jealousy from their breasts; they will be on chairs placed opposite each other as brothers.
The Rocky Tract/15:48
No fatigue will touch them therein, nor will they be driven out of it.