As for al-Bukhārī’s legal insight (fiqh), it is manifest in his chapter headings—those very headings that al-Ḥāfiẓ Ibn Ḥajar, in the introduction to Fatḥ al-Bārī, described as bewildering the sharpest minds and astounding every intellect and eye. He deemed them lofty beyond easy reach and unparalleled in their model, for al-Bukhārī alone brought to them a precision unmatched by his peers and became famous for the rigor with which he forged them.

One illustration of this meticulousness appears in the Book of Hiring, where he writes: “Chapter: If someone hires a worker to begin labor after three days, or after a month, or after a year, the contract is valid, and both parties remain bound by the condition they stipulated when the term arrives.” The purport of this heading is that the period of hire need not commence immediately at the time the contract is concluded. Under this title he cites the hadith of ʿĀʾishah—may Allah be pleased with her—number 2264, concerning the Prophet ﷺ and Abu Bakr—may Allah be pleased with him—hiring a man from the Banū al-Dil, an expert guide and tracker. They handed over to him their two camels and appointed for him to meet them at the Cave of Thawr after three nights.

Furthermore, part of al-Bukhārī’s method in the Ṣaḥīḥ is that he may transmit