[Machine] I said, "O Messenger of Allah, shall I not carry a donkey for you on a horse so that it produces a mule for you to ride?" He said, "This is only done by those who do not know."
قُلْتُ يَا رَسُولَ اللهِ أَلَا أَحْمِلُ لَكَ حِمَارًا عَلَى فَرَسٍ فَتُنْتِجَ لَكَ بَغْلًا فَتَرْكَبُهَا؟ قَالَ إِنَّمَا يَفْعَلُ ذَلِكَ الَّذِينَ لَا يَعْلَمُونَ
"A mule was given as a gift to the Messenger of Allah and he rode it." 'Ali said: "If we mate a donkey with a horse, we will have one like this." The Messenger of Allah said: "That is only done by those who do not know."
أُهْدِيَتْ إِلَى رَسُولِ اللَّهِ ﷺ بَغْلَةٌ فَرَكِبَهَا فَقَالَ عَلِيٌّ لَوْ حَمَلْنَا الْحَمِيرَ عَلَى الْخَيْلِ لَكَانَتْ لَنَا مِثْلَ هَذِهِ قَالَ رَسُولُ اللَّهِ ﷺ إِنَّمَا يَفْعَلُ ذَلِكَ الَّذِينَ لاَ يَعْلَمُونَ
The Messenger of Allah ﷺ was present with a she-mule which he rode, so Ali said: If we made asses cover mares we would have animals of this type. The Messenger of Allah ﷺ said: Only those who do not know do that.
أُهْدِيَتْ لِرَسُولِ اللَّهِ ﷺ بَغْلَةٌ فَرَكِبَهَا فَقَالَ عَلِيٌّ لَوْ حَمَلْنَا الْحَمِيرَ عَلَى الْخَيْلِ فَكَانَتْ لَنَا مِثْلُ هَذِهِ قَالَ رَسُولُ اللَّهِ ﷺ إِنَّمَا يَفْعَلُ ذَلِكَ الَّذِينَ لاَ يَعْلَمُونَ