The Book of the Believer · Hadith 149 (#Ḥadīth #4)

149 - وعن أمير المؤمنين عليه السلام أنه قال لبعض أصحابه، تذهب بنا نعود فلانا؟ قال: فذهبت معه فإذا أبو موسى الأشعري جالس عنده، فقال أمير المؤمنين عليه السلام: يا أبا موسى، أعائدا جئت أم زائرا؟ فقال، لابل عائدا، فقال: أما إن المؤمن إذا عاد أخاه المؤمن صلى عليه سبعون ألف ملك حتى يرجع إلى أهله.

149. It has been related that Amir al-Mu'minin said to some of his companions, 'Will you come with me to visit so-and-so who is sick?' They therefore went with him and found Abu Musa al-Ash'ari seated with him. Amir al-Mu'minin asked, 'O Abu Musa, have you come to see him because he is sick or is it just a social visit?' 'Rather (I came) because he is sick,' he replied.'When a believer visits his sick brother-in-faith,' Amir al-Mu'minin said, 'seventy thousand angels bless him until he returns to his family.'

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).