Islamic Sciences Catalogued: Quran and Hadith

The Quranic sciences occupy a position of supreme importance in Kashf al-Zunun, as befits a catalog of Islamic scholarship in which every other discipline is ultimately oriented toward the understanding and application of divine revelation. Hajji Khalifa's coverage of tafsir literature is extensive, listing hundreds of works of Quranic commentary spanning more than twelve centuries of Islamic scholarship. The entries range from the great classical commentaries of al-Tabari, al-Zamakhshari, al-Baydawi, and Ibn Kathir to smaller regional and school-specific works that might otherwise have remained unknown to scholars outside their place of composition. For each major tafsir, Hajji Khalifa notes the author's methodological orientation: whether his approach is primarily narrative (riwaya-based tafsir, relying on reports from the Companions and Successors), linguistic (focusing on Arabic lexicography and grammar), theological (addressing creedal implications of Quranic verses), or juristic (emphasizing legal derivation from the text).

The qira'at literature, covering the multiple canonical recitation traditions of the Quran, receives careful coverage in the Kashf al-Zunun. Hajji Khalifa lists the foundational works: the Kitab al-Sab'a of Ibn Mujahid, which established the seven canonical readings, along with the major works of each subsequent generation of qira'at scholarship. He notes the important distinction between the mutawatir readings, transmitted through unbroken mass chains of transmission and therefore fully authoritative, and the rarer shadhdh readings, transmitted through narrower chains and accepted for linguistic information but not for recitation in prayer. This distinction reflects the sophisticated approach to textual transmission that characterizes Islamic scholarship generally. The tajwid literature, covering the rules of correct Quranic recitation, is also catalogued, with entries for the major practical manuals used in the madrasa system and in mosque instruction.

The hadith sciences receive equally comprehensive treatment. Hajji Khalifa provides detailed entries for the Six Books (Kutub al-Sitta) of canonical Sunni hadith: the Sahih collections of al-Bukhari and Muslim, the four Sunan works of Abu Dawud, al-Tirmidhi, al-Nasai, and Ibn Majah. For each he lists the major commentaries, noting which have been most widely taught: Ibn Hajar al-Asqalani's Fath al-Bari on al-Bukhari, al-Nawawi's Sharh Sahih Muslim, al-Khattabi's Maalim al-Sunan on Abu Dawud, and others. The entry for the Muwatta of Imam Malik acknowledges its priority as the earliest major hadith collection and lists its numerous recensions and the commentaries written on them, including the important commentary of Ibn Abd al-Barr. Beyond the canonical collections, the Kashf al-Zunun catalogs the musannaf works, the musnad works, the major hadith encyclopedias, and the specialized thematic collections that addressed particular legal or ethical topics.

The sciences of hadith criticism and evaluation receive substantial attention. Hajji Khalifa lists the major works of rijal criticism (evaluation of hadith narrators), including the great biographical dictionaries of Ibn Abi Hatim, al-Mizzi's Tahdhib al-Kamal, al-Dhahabi's Mizan al-Itidal, and Ibn Hajar's Tahdhib al-Tahdhib and Taqrib al-Tahdhib. He also covers the theoretical works of hadith methodology ('ulum al-hadith), including Ibn al-Salah's foundational Muqaddima, al-Nawawi's Taqrib, and the many later condensations and commentaries on these texts. The breadth of this coverage reflects the centrality of hadith sciences to the entire Islamic legal and theological tradition: without reliable knowledge of which narrators are trustworthy and which traditions are authentically transmitted, the other sciences cannot function properly. Hajji Khalifa's catalog of this literature is itself an invaluable guide to the hadith critical tradition.