A male or female mule was given to the Messenger of Allah ﷺ as a gift. I said: What is this? He said: ʿA mule.ʿ I said: Where does it come from? He said: ʿFrom mating a male donkey with a mare, and this is what is produced.ʿ I said: Should we mate [a donkey] with [a mare]? He said: ʿNo, this is only done by those who do not know.” (Using translation from Aḥmad 766)
أُهْدِيَ لِلنَّبِيِّ ﷺ بَغْلَةٌ أَوْ بَغْلٌ فَقُلْتُ يَا رَسُولَ اللهِ مَا هَذَا؟ قَالَ بَغْلٌ أَوْ بَغْلَةٌ يُنْزَى الْحِمَارُ عَلَى الْفَرَسِ فَيَخْرُجُ هَذَا مِنْ بَيْنِهِمَا فَقُلْتُ نُنْزِي فُلَانًا عَلَى فُلَانَةَ؟ قَالَ إِنَّمَا يَفْعَلُ ذَلِكَ الَّذِينَ لَا يَعْلَمُونَ