The Family Of Imran - 3:136
They will be rewarded with forgiveness from their Lord and gardens beneath which rivers flow, abiding therein forever. How good is the reward of those who work.
Those who believe will abide in Paradise 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.