Marriage and Contracts in Tabyin al-Haqaiq: Hanafi Family Law

Az-Zayla'i's treatment of marriage and contracts in Tabyin al-Haqaiq presents the Hanafi school's family law and commercial law with the evidential depth that distinguishes his work. The marriage chapter is particularly important for its treatment of the Hanafi school's distinctive positions on the wali requirement and on the adult woman's capacity to contract her own marriage.

The Hanafi school's position that an adult woman (balighah) of sound mind may contract her own marriage without requiring her guardian's participation is explained by az-Zayla'i with its evidential basis. The Hanafi argument rests on the principle of contractual capacity: an adult woman of sound mind has full legal capacity to manage her own affairs, and this capacity extends to the marriage contract. The hadith 'There is no marriage without a wali' is interpreted by the Hanafi school as referring to the preferability of the wali's involvement, not as an absolute condition of validity.

Az-Zayla'i engages directly with the Shafi'i and Hanbali argument that the hadith establishes the wali as a condition of validity. He examines the chain of transmission of this hadith and notes that Hanafi hadith scholars have raised questions about its reliability — specifically about whether the hadith is mursal (missing a link in the chain) or reaches the Prophet with an unbroken chain. The Hanafi school's assessment of the hadith's chain, combined with Quranic verses and other hadiths indicating the woman's independent capacity in contract, leads to the Hanafi position.

However, az-Zayla'i explains the important Hanafi qualification: while the adult woman's marriage without her wali is valid, the guardian retains the right to seek judicial annulment (faskh) if the husband is not a suitable match (kuf') — lacking kufu' in lineage, religion, profession, or financial standing. This mechanism protects the family's legitimate interest in the bride's suitable marriage while respecting the adult woman's legal capacity.

The mahr section in Tabyin al-Haqaiq explains the Hanafi minimum of ten dirhams and its basis. Az-Zayla'i acknowledges that the specific figure of ten dirhams is not found in an explicit prophetic hadith but derives from the consensus position of the early Hanafi scholars (Abu Hanifah, Abu Yusuf, and Muhammad ash-Shaybani). He explains the reasoning: the marriage is a significant contractual act requiring a significant mahr; a very small amount (such as a ring of iron) would trivialize the institution of mahr and disrespect the bride. The specific threshold of ten dirhams represents the Hanafi scholars' determination of what constitutes a meaningful minimum.

For commercial contracts, az-Zayla'i's commentary covers the Hanafi law of sale, riba, and related transactions with the hadith-grounded analysis that characterizes his work. The Hanafi school's extension of the riba prohibition to all weighed and measured goods (not merely the six named items) is explained: the 'illah (rationale) for riba prohibition in the six items is that they are weighed or measured; any good sharing this characteristic therefore falls under the same prohibition. Az-Zayla'i examines the Shafi'i and Maliki counter-arguments about the correct 'illah and defends the Hanafi position.

The bay' al-ta'ati (contract by mutual exchange without explicit verbal offer and acceptance) is an important Hanafi commercial law position that az-Zayla'i explains with its theoretical basis. The Hanafi school validates this form of contract based on the principle that the 'adah (custom) of the marketplace is to exchange goods without formal verbal contracts, and custom ('urf) operates as a source of legal determination in areas not regulated by specific text. This Hanafi position, which makes day-to-day commercial transactions valid without formal verbal contracts, reflects the school's practical orientation toward commercial life.