Introduction

Tabyin al-Haqa'iq Sharh Kanz al-Daqa'iq, translated as 'Clarifying the Realities: A Commentary on the Treasury of Subtleties,' is a major work of Hanafi jurisprudence authored by Fakhr al-Din 'Uthman ibn 'Ali al-Zayla'i (d. 743 AH / 1343 CE). The work is a detailed commentary on Kanz al-Daqa'iq, the celebrated Hanafi legal compendium of 'Abd Allah ibn Ahmad al-Nasafi (d. 710 AH / 1310 CE). Al-Zayla'i's commentary proved so authoritative that it became one of the standard references for Hanafi jurists seeking to understand and apply al-Nasafi's text, which itself summarized the mature Hanafi tradition of Central Asia and Iraq.

Al-Zayla'i was a judge and scholar based in Egypt, and his work reflects the Hanafi school's engagement with both the textual tradition of hadith and the sophisticated legal reasoning developed in the great Hanafi centers of learning. Tabyin al-Haqa'iq follows the standard commentary format: quoting sections of the base text, then providing detailed explanation of the ruling, the evidence supporting it, and the disagreements among Hanafi jurists where they exist. Al-Zayla'i also notes the positions of other legal schools and explains the Hanafi reasoning in relation to them, giving readers a comparative perspective while keeping the Hanafi framework primary.

The commentary covers the full range of Hanafi positive law from purification and prayer through commercial transactions, family law, and criminal provisions. Al-Zayla'i's explanations are thorough without being prolix, and his command of the Hanafi textual tradition is evident in his precise citation of earlier authorities. The work also benefits from his engagement with the hadith sciences; al-Zayla'i was also the author of Nasb al-Rayah, a major work on the hadith foundations of Hanafi fiqh, and this expertise informs his treatment of the evidential basis for rulings throughout Tabyin al-Haqa'iq.

Tabyin al-Haqa'iq remains a significant reference work in the Hanafi tradition, studied in traditional seminaries and consulted by scholars seeking detailed Hanafi rulings with their full evidential and legal reasoning context. For students of Islamic jurisprudence, the work provides a model of classical commentary methodology and an authoritative guide to Hanafi legal doctrine as it was understood and practiced in the mature classical period. Together with al-Zayla'i's hadith commentary Nasb al-Rayah, it represents a major contribution to the documentary heritage of the Hanafi school.