And it is narrated from him that the Messenger of Allah (peace and blessings be upon him) forbade temporary marriage of women, and eating the meat of domesticated donkeys on the day of Khaybar. It was narrated by the seven except Abu Dawud.

The Shaykh : Then the author (may Allah have mercy on him) said: "And it is narrated from him that the Messenger of Allah (peace and blessings be upon him) [forbade] from Ali

The Prophet prohibited the Mut'ah with women, and the meat of domestic donkeys during (the campaign of) Khaibar.

نهى عن متعة النساء، وعن أكل الحمر الأهلية يوم خيبر

Jami` at-Tirmidhi 1121Sahih (Darussalam)

It was narrated by the seven".
It appears the author quoted this wording to clarify that the prohibition of temporary marriage is distinct from eating donkey meat. He said: The statement is complete, It was narrated by the seven except Abu Dawud. Yes.
Now, regarding his statement: "To distinguish it from the tamattu' of Hajj," because there are two types of tamattu': The first is the tamattu' of Hajj, which is not forbidden; rather, it is commanded, either as an obligation or as a recommended practice. The tamattu' of Hajj is when a person enters the state of ihram for 'Umrah during the months of Hajj, then exits the state of ihram, and then enters the state of ihram for Hajj in the same year. Thus, the 'Umrah is independent of the Hajj, and he is a mutamatti' between the 'Umrah and the Hajj with what Allah has made lawful for him. This is why it is called tamattu', as Allah the Exalted said: meaning: by virtue of the 'Umrah and exiting its state, to enjoy what? What Allah has made lawful for him. If you arrive in Mecca during the months of Hajj and pass the miqat intending to perform Hajj, you are required to enter the state of ihram from the miqat and remain in your state of ihram until the Day of Sacrifice. In that case, you do not enjoy women, perfume, or any of the other prohibitions of ihram. However, if you intend 'Umrah from the miqat, enter Mecca, perform tawaf and sa'y, and cut your hair, you exit the state of ihram and enjoy what Allah has made lawful for you from the prohibitions of ihram. Until when? Read the verse.
The student: Until Hajj.

The Shaykh : Until Hajj. You enjoy until Hajj. If you arrive in Dhu al-Qa'dah, you enjoy until the eighth of Dhu al-Hijjah, and so on. This is why the word "until" indicating a limit was used: This is commanded. The Prophet (peace and blessings be upon him) commanded his Companions to do it and made it binding upon them, to the extent that Shaykh al-Islam Ibn Taymiyyah said: "It was obligatory upon the Companions in that year—that is, tamattu'—" and this is the correct view: that it was obligatory upon the Companions, and a recommended practice (sunnah) for others. Muslim narrated in his Sahih from Abu Dharr (may Allah be pleased with him) that he was asked about tamattu' and he said: "It was specific to us." The meaning of this is its obligation. As for its permissibility for the general public, Suraqah ibn Malik (may Allah be pleased with him) asked the Prophet (peace and blessings be upon him), saying: meaning that it is prescribed, but it was obligatory upon the Companions because they were the ones directly addressed with it, and because their disobedience would invalidate this legislation. If the Companions who were directly addressed by the command left it and did not perform it, then those after them would be even more likely to do so. Therefore, the statement of Shaykh al-Islam is more correct than the view of his student Ibn al-Qayyim, who leaned toward the obligation of tamattu' or changing Hajj to 'Umrah. Rather, we say: it was obligatory upon the Companions and a recommended practice (sunnah) for those after them. This is the tamattu' of Hajj. This is why he qualified it, saying: So what is the tamattu' of women? It is when a man marries a woman for a specified period. This is the tamattu' of women, which the Messenger (peace and blessings be upon him) forbade.
Domesticated donkeys. He also qualified it to distinguish it from wild donkeys, because wild donkeys are considered game that live in the desert. Al-Sa'ib ibn Jathamah hunted for the Prophet (peace and blessings be upon him) when he stayed at al-Abwa. Al-Sa'ib (may Allah be pleased with him) was generous, and he was a swift runner who could outrun domesticated donkeys and hunt them.
The student: Wild.

The Shaykh : Wild, that was my intention. Yes, wild, and he hunted them. So he came to the Prophet (peace and blessings be upon him) with a wild donkey, and the Prophet (peace and blessings be upon him) returned it to him. His face changed, and it was right for his face to change when the Prophet (peace and blessings be upon him) returned his gift, for the Prophet (peace and blessings be upon him) was the most noble of people in character. So his face changed, and he said: Then he was satisfied.
In any case: wild donkeys are lawful, domesticated donkeys are forbidden. Before the day of Khaybar, they were lawful. Domesticated donkeys before Khaybar were lawful; they were slaughtered and eaten. And glory be to Allah! Before they were forbidden, they were among the good things, and after they were forbidden, they became among the bad things, because the ruling belongs to whom? To Allah. So Allah, Mighty and Majestic, after He forbade them, placed impurity in them. Initially, they were good and eaten as cattle are eaten, but when Allah forbade them, they became impure; Allah created impurity in them. And therefore meaning: impure and ritually impure.