Sahih Bukhari

Narrated Abu Huraira:Allah's Messenger (ﷺ) said, ""Allah said, ""I have prepared for My Pious slaves things which have never been seen by an eye, or heard by an ear, or imagined by a human being."" If you wish, you can recite this Verse from the Holy Qur'an:--""No soul knows what is kept hidden for them, of joy as a reward for what they used to do