Why are marriage contracts in Egypt limited to the school of thought of Imam Abu Hanifa? Are there fundamental differences between it and other schools of thought regarding marriage rulings? And why is marriage not conducted according to the Sunnah of the Messenger and his Companions?

The officiant (ma'dhun) should not obligate the woman's guardian to a specific madhhab (definition) (school of thought) when performing the marriage contract. Rather, it is sufficient to say: "I give you my daughter so-and-so in marriage," or "according to the Book of Allah and the Sunnah (definition) of His Messenger." The reason for specifying the madhhab of Abu Hanifa might be that the people of the region adhere to it. There are differences among the madhahib regarding matters of marriage, and the officiant's statement "according to the madhhab of Abu Hanifa" does not invalidate the marriage's legitimacy, because the followers of each madhhab believe that their madhhab conforms to what the Prophet and his Companions followed. However, explicitly stating a specific madhhab during the contract should be avoided, as it narrows down what is broad and restricts what is flexible.