Have you come to visit him (because he is sick), O Abu Moosa, or is it just a (social) visit? He said: No. O Ameer al-Mu"mineen; rather I have come to visit him (because he is sick), ‘Ali (رضي الله عنه) said: I heard the Messenger of Allah (ﷺ) say: "No Muslim visits his fellow Muslim when he is sick but seventy thousand angels send blessings upon him from morning until evening, and Allah grants him a stream in Paradise." [The narrator] said: O Ameer al-Mu"mineen, what is a stream? He said: The channel that waters palm trees.