Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) said: A mule was given to the Prophet (peace and blessings be upon him) as a gift, and he (peace and blessings be upon him) rode it. Sayyiduna Ali (may Allah be pleased with him) said: "If we were to mate donkeys with mares, we too would have the like of this." He (peace and blessings be upon him) said: "Only those who do not know do that."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السبق والرمي / 19784
Sayyiduna Ali (may Allah be pleased with him) said: A mule was given to the Prophet (peace and blessings be upon him) as a gift, and we liked it very much. I said: "O Messenger of Allah, if we let donkeys mate with mares, will we too get ones like this?" He (peace and blessings be upon him) said: "Only those who do not know do that."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السبق والرمي / 19785
Sayyiduna Ali (may Allah be pleased with him) said: The people of Aylah, or Farwah, gave the Prophet (peace and blessings be upon him) a white mule as a gift. I said: "O Messenger of Allah, if we let donkeys mate with mares, we too will get mules like this." He (peace and blessings be upon him) said: "Only those who do not know do that."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السبق والرمي / 19786
Ali bin Alqamah narrates from Sayyiduna Ali (may Allah be pleased with him) that it was said to the Prophet (peace and blessings be upon him): "Shall we let a donkey mate with a mare?" He (peace and blessings be upon him) said: "Only those who do not know do that."
(b) In the narration of Ibn al-Sabbah it is: A mule, male or female, was given to the Prophet (peace and blessings be upon him) as a gift. I said: "O Messenger of Allah, what is this?" He (peace and blessings be upon him) said: "A mule, male or female. When a donkey is let mate with a mare, this is born from it." I said: "Shall we let so-and-so (a donkey) mate with so-and-so (a mare)?" He (peace and blessings be upon him) said: "Only those people who do not know do that."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السبق والرمي / 19787
It is reported from Sayyiduna Ibn Abbas (may Allah be pleased with them both): The Messenger of Allah (peace and blessings be upon him) ordered us "to perform the ablution (wudu) completely," and forbade us, and I do not say he forbade you, "that we eat charity (sadaqah), or let a donkey mate with a mare."
In this chain al-Thawri named him Ubaydullah, but he is in fact Abdullah bin Ubaydullah bin Abbas; Sufyan's narration is a mistake (wahm), as al-Bukhari and others said.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السبق والرمي / 19788
Abdullah bin Ubaydullah says: I came to Ibn Abbas (may Allah be pleased with him) among some young men of Banu Hashim. Ibn Abbas (may Allah be pleased with him), in a hadith that he mentioned from the Prophet (peace and blessings be upon him), said that the Prophet (peace and blessings be upon him) "singled us out from others in three things: 1. that we complete the ablution (wudu); 2. that we do not eat charity (sadaqah); 3. that we do not let a donkey mount a mare."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السبق والرمي / 19789