Narrated Abu Moosa al-Ash`ari visited al-Hasan bin `Ali (when he was sick). `Ali (رضي الله عنه) came in and said:
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.` said: O Ameer al-Mu`mineen, what is a stream? He said: The channel that waters palm trees.
Narrated It was narrated that `Ali bin Abi Talib (رضي الله عنه) said:
The Messenger of Allah (ﷺ) taught me to say, if calamity befell me: “There is no god but Allah, the Forbearing the Most Generous; glory be to Allah, blessed be Allah, the Lord of the mighty Throne; praise be to Allah, the Lord of the Worlds.”
`Ali (رضي الله عنه) came to some of the people of Basrah who were Khawarij, among whom was a man called Al-Ja’d bin Ba’jah. He said to him: Fear Allah, O ‘Ali, for you are going to die `Ali (رضي الله عنه) said: Rather I am going to be killed by a blow on this that will soak this - meaning his beard [would be soaked by blood from his head), a certain covenant and divine decree, And surely, he who invents a lie (against Allah) will fail miserably (cf 20:61). Then (the man) criticised `Ali for the way he was dressed. He said: What does the way I am dressed have to do with you? It is furthest removed from arrogance and it is more appropriate for the Muslim to follow my example.