al-Usul fi al-Nahw
- Author died
- 316 AH
- Editions
- Mu'assasat al-Risalah
Al-Usul fi al-Nahw (The Principles of Grammar) is a treatise on Arabic syntax and morphology by the Baghdadi grammarian Ibn al-Siraj (d. 316 AH / 929 CE) that systematically classified and codified the rules of Arabic grammar derived from earlier authorities.
Content and Structure
Ibn al-Siraj stated that his aim in the work was to articulate the consistent grammatical causes (al-'illah), record the foundational principles and standard usages in a concise manner, and organize grammatical categories clearly so that students could easily comprehend and memorize them. The book lacks an elaborate opening preface, contains minimal digression, and gathers related subjects into unified chapters rather than scattering them across disparate sections.
The work opens with the definition of Arabic grammar and the parts of speech, followed by the operative agents (al-'awamil) and case inflection and indeclinability (al-i'rab wa-l-bina'). It then proceeds through nominative nouns (al-marfu'at), accusative nouns (al-mansubat), genitive nouns (al-majrurat), and grammatical followers (al-tawabi'), including adjectives, corroboration, and conjunctions. These are followed by verbal particles of the subjunctive and jussive moods, sections on word order (al-taqdim wa-l-ta'khir), relative clause predications, and morphological topics (al-sarf), concluding with a chapter on poetic necessity (darurat al-sha'ir).
Methodology and Sources
The book draws primarily upon the material of Sibawayh's al-Kitab, extracting its issues and reorganizing them into a structured taxonomy. Ibn al-Siraj applied logical divisions (taqasim) and terminology influenced by the logicians, an approach noted by Abu Abd Allah al-Marzubani as having appealed to philosophers.
Although grounded predominantly in the doctrine and technical vocabulary of the Basran grammatical tradition, Ibn al-Siraj incorporated rulings and inquiries from al-Akhfash al-Awsat and scholars of the Kufan school, adopting Kufan terms in several places and diverging from conventional Basran positions across various chapters.
Reception and Transmission
Al-Usul fi al-Nahw attained wide authority in Arabic linguistic literature and was regarded by later grammarians as the decisive reference whenever transmissions or opinions diverged. Classical scholars frequently cited the maxim regarding its systematizing role: "Grammar remained wild until Ibn al-Siraj bound it with his Usul" (ما زال النحو مجنونا حتى عقله ابن السراج بأصوله).
Abu al-Hasan al-Rummani recorded that when someone suggested in Ibn al-Siraj's presence that the book surpassed al-Mubarrad's al-Muqtadab, Ibn al-Siraj demurred and credited his predecessor with the foundation of his learning. Later scholars engaged closely with its theoretical framework; Ibn Jinni, for instance, examined and commented on Ibn al-Siraj's treatment of linguistic causality, specifically his discussion of the "cause of causes" ('illat al-'ilal).
The work was transmitted through prominent disciples including Abu Ali al-Farisi and Abu Sa'id al-Sirafi, and it has been published in a modern critical edition edited by Abd al-Husayn al-Fatli.
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