As-Sajdah - 17

﴿فَلَا تَعْلَمُ نَفْسٌ مَا أُخْفِيَ لَهُمْ مِنْ قُرَّةِ أَعْيُنٍ جَزَاءً بِمَا كَانُوا يَعْمَلُونَ﴾

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(17) And no soul knows what has been hidden for them of comfort for eyes [i.e., satisfaction] as reward for what they used to do.