the authentic hadiths that form the book’s main subject, it also contains—within the headings of its chapters—abridged narrations, legal deductions, reports from the early generations, and other material that does not strictly belong to the work’s declared theme. Ḥāfiẓ Ibn Ḥajar remarks in the introduction to Fatḥ al-Bārī, after mentioning the book’s focus: “He then resolved not to leave it barren of juristic benefits and wise insights, so, through his keen understanding of the source texts, he extracted numerous meanings, distributing them throughout the book’s chapters where they best fit. He paid special attention to the Qur’anic verses that deal with rulings, drawing from them striking evidences and taking broad avenues in pointing to their interpretation.” End quote.
Thus Imām al-Bukhārī, may Allah have mercy on him, united in his al-Jāmiʿ al-Ṣaḥīḥ both transmission and comprehension, preserving the Sunnah of the Messenger of Allah ﷺ and explicating it.