Abu Hurairah (May Allah be pleased with him) said:

The Messenger of Allah (ﷺ) said, “Allah, the Exalted, has said: ‘I have prepared for my righteous slaves what no eye has seen, no ear has heard, and the mind of no man has conceived.'” If you wish, recite:

فَلَا تَعْلَمُ نَفْسٌۭ مَّآ أُخْفِىَ لَهُم مِّن قُرَّةِ أَعْيُنٍۢ جَزَآءًۢ بِمَا كَانُوا۟
يَعْمَلُونَ
(Qur’an 32:17)

“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.” (Qur’an 32:17)

[Al-Bukhari and Muslim].

Riyad as-Salihin, 1881