It was narrated that ‘Abdullah bin Nafi’ said

Abu Moosa al-Ash’ari visited al-Hasan bin ‘Ali when he was sick. ‘Ali (رضي الله عنه) said to him: Are you visiting him because he is sick, or is this a social visit? Abu Moosa said: Rather I have come to visit him because he is sick. `Ali (رضي الله عنه) said: I heard the Messenger of Allah (ﷺ) say: “Whoever visits a sick person in the morning, seventy thousand angels will go out with him, all of them praying for forgiveness for him, until evening comes, and he will have a garden in Paradise. And whoever visits a sick person in the evening, seventy thousand angels will go out with him, all of them praying for forgiveness for him until morning comes, and he will have a garden in Paradise.