It is narrated from Sayyiduna Ali (may Allah be pleased with him) that a male or female mule was given as a gift to the Messenger of Allah (peace and blessings be upon him). I said: What is this? The Prophet (peace and blessings be upon him) said: This is a male or female mule of the breed. I said: How is it produced? The Prophet (peace and blessings be upon him) said: When a donkey mates with a mare, this is produced from them. I said: Then should we not mate such-and-such donkey with such-and-such mare? The Prophet (peace and blessings be upon him) said: No, only those people do such a thing who do not have knowledge.
Hadith Takhrij«صحيح لغيره، أخرجه ابوداود: 2565، والنسائي: 6/ 224، (انظر مسند أحمد ترقيم الرسالة: 766 ترقیم بيت الأفكار الدولية: 766»
Brief Explanation
Benefits: … That is, those who do not possess the knowledge of which thing is better and more appropriate according to wisdom and prudence—indeed, the horse is, in any case, a superior animal compared to the mule. Through it, jihad is carried out, spoils of war are obtained, and it is a lawful (halal) animal. None of these qualities are found in the mule. Furthermore, if general permission is given for breeding mules, then the number of horses will decrease.