Thawban, the freed slave of Muhammad, narrated the Messenger of Allah, peace be upon him, said, “Whoever visits a sick person will remain in an orchard of Paradise until he returns.”
[Sahih Muslim, Book 32, Number 6228]
عَنْ ثَوْبَانَ، مَوْلَى رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم
مَنْ عَادَ مَرِيضًا لَمْ يَزَلْ فِي خُرْفَةِ الْجَنَّةِ حَتَّى يَرْجِعَ