Narrated It was narrated that ‘Ali (رضي الله عنه) said:
When al-Hasan was born, I named him Harb , then the Messenger of Allah (ﷺ) came and said: `Show me my son; what did you name him?` We said: Harb. He said: `Rather he is Hasan.” When al-Husain was born, I named him Harb, then the Messenger of Allah (ﷺ) came and said: “Show me my son; what did you name him?” We said; Harb. He said: “Rather he is Husain.” When the third one was born, I named him Harb. The Prophet (ﷺ) came and said: “Show me my son, what did you name him?” I said. Harb. He said: `Rather, he is Muhassin.` Then he said: `I have named them after the fashion of the sons of Haroon, Shabbar and Shabeer and Mushabbir.”
Narrated It was narrated that ‘Ali (رضي الله عنه) said:
A male or female mule was given to the Messenger of Allah (ﷺ) as a gift. I said: What is this? He said: `A mule.` I said: Where does it come from? He said: `From mating a male donkey with a mare, and this is what is produced.` I said: Should we mate ? He said: `No, this is only done by those who do not know.”