Quran 32:17

فَلَا تَعْلَمُ نَفْسٌۭ مَّآ أُخْفِىَ لَهُم مِّن قُرَّةِ أَعْيُنٍۢ جَزَآءًۢ بِمَا كَانُوا۟ يَعْمَلُونَ

And no soul knows what has been hidden for them of comfort for eyes as reward for what they used to do.

Translation · Saheeh International