Hadith 3

It is narrated from ʿAlī ibn Abī Ṭālib—may Allah be pleased with him—that the Prophet ﷺ forbade nikah al-mutʿah (temporary marriage) on the Day of Khaybar and also prohibited the flesh of domesticated donkeys.

Overall meaning
The Divine Lawgiver instituted marriage so that husband and wife might live together permanently, fostering affection, building and sustaining a family. Because divorce demolishes this noble edifice, it is the most detested of lawful acts to Allah. Consequently, every intention or condition that contradicts the purpose of marriage is invalid. For this reason, nikah al-mutʿah—where a man marries a woman for a fixed term—was forbidden after having been permitted at the dawn of Islam only out of necessity. The harms inherent in such a union—confusion of lineage, treating women’s chastity as something hired out, and its clash with sound taste and upright human nature—far outweigh the momentary pleasure it affords.

Points derived from the hadith
1- Temporary marriage is forbidden and therefore void. The scholars are unanimous on this. Ibn Daqīq al-ʿĪd said: “All jurists of the Islamic lands prohibit it, and most confine the ruling of prohibition to the time-limited contract itself.”
2- It was allowed at the beginning of Islam only because of dire necessity, but the subsequent prohibition is emphatic and everlasting, even in cases of hardship.
3- The Wise Lawgiver prohibited it because of the evils that follow, among them the mixing of lineages and the unlawful exploitation of private parts outside a valid marriage.
4- The meat of domesticated donkeys is likewise forbidden, for it is impure, whereas wild donkeys are unanimously deemed lawful.

Benefit
Shaykh al-Islām Ibn Taymiyyah—may Allah have mercy upon him—was asked about a man who travels through different lands and fears falling into sin: may he marry a woman for the period of his stay in that town and then divorce her when he departs?