Dirasat Usuliyya Tatbiqiyya ala Ayat al-Ahkam
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Dirasat Usuliyya Tatbiqiyya ala Ayat al-Ahkam (Applied Theoretical Studies on the Verses of Legal Rulings) is a contemporary work on Islamic legal theory (usul al-fiqh) by the scholar Abd al-Rahman ibn Ali al-Hattab, focusing on the practical application of theoretical legal principles to the Quranic verses governing legal rulings (ayat al-ahkam).
Background and Purpose
The work compiles a collection of peer-reviewed research papers, with the exception of the first and second studies. The author abridged the foundational theoretical sections to emphasize practical application, defining applied legal theory (al-tatbiq al-usuli) as putting theoretical principles into practice by observing their implications in understanding the text and deriving its legal rulings. Al-Hattab conceived the book as a means to train students of Islamic jurisprudence in identifying the underlying theoretical bases (ma'akhidh) of legal rulings, highlighting the role of usul principles as the necessary instruments of deduction (istinbat) between the text and the derived rulings.
Structure and Contents
The book consists of eight distinct applied studies varying in their scope and organizational approaches:
- Application to Surat al-Baqarah: Examines the impact of legal theoretical principles on the rulings derived in Jalal al-Din al-Suyuti's al-Iklil fi Istinbat al-Tanzil (The Crown in the Deduction of Revelation). This study was extracted from al-Hattab's larger commentary Fath al-Jalil fi al-Ta'liq 'ala Kitab al-Iklil and arranged by his student Hami Darami, a doctoral candidate in usul al-fiqh at the Islamic University of Madinah.
- Application to the Verses of Hajj: Gathers the Quranic verses regarding pilgrimage and analyzes the influence of usuli rules on their derived rulings, following their sequence in the Quran; it was extracted from the author's work Fath al-'Allam fi Sharh Bulugh al-Maram min Ayat al-Ahkam.
- Application to the Verse of Ablution: Analyzes the legal deductions from the verse of ablution (Surat al-Ma'idah, verse 6), structured across classical jurisprudential chapters of ritual purity: waters and removal of impurities, ablution (wudu), nullifiers of ablution, wiping over leather socks and full-body washing (ghusl), and dry ablution (tayammum).
- Application of the Imperative Form li-yaf'al: Investigates the jussive imperative construction (lam al-amr) across legal verses according to their Quranic sequence.
- Application of Declarative Statements Conveying Imperative Meaning: Explores declarative sentences (al-khabar bi-ma'na al-amr) that function as legal commands across verses of rulings.
- Application to Contemporary Issues (Nawazil) in Acts of Worship: Applies legal deduction from Quranic texts to modern emergent questions in worship, organized according to the fiqh chapters in Bulugh al-Maram min Ayat al-Ahkam.
- Theoretical Investment of the Text: Demonstrates how legal theorists exploit textual evidence using the verse وَأَحَلَّ اللَّهُ الْبَيْعَ وَحَرَّمَ الرِّبَا ("Allah has permitted trade and forbidden usury"), showing methods of establishing principles, refuting opposing rules, and deriving substantive laws.
- Analytical Study of Prohibited Marriages: An analytical usuli evaluation of the Quranic verses outlining women prohibited in marriage (muharramat al-nikah).
Methodology
Al-Hattab does not aim to provide exhaustive verification (tahqiq) of every substantive sub-rule or fundamental rule, leaving detailed debate to dedicated treatises of fiqh and legal theory. Instead, his objective is to present positions grounded in recognized theoretical rules, clarifying the mode of reliance and the mechanism of deduction to serve as a practical training manual. The author notes that he avoids asserting views without preceding authoritative scholars whose opinions are relied upon.
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