Surah As-Sajdah 32:17

فَلَا تَعْلَمُ نَفْسٌ مَّآ أُخْفِىَ لَهُم مِّن قُرَّةِ أَعْيُنٍ جَزَآءًۢ بِمَا كَانُوا۟ يَعْمَلُونَ

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.

Translation: Saheeh International

Tafsir

For no soul knows what has been kept hidden for them in the way of joyous sights a variant reading for ukhfiya has the imperfect tense ukhfī as a reward for what they used to do.

Excerpt from Tafsir al-Jalalayn, commentary on 32:17, via Quran.com. The reader has the full commentary and 9 more tafsirs.