This study examines how the Qur’an, the Sunnah, consensus, rational evidence, and the practical principles function within Imami usul al-fiqh in relation to the protection of social interests. For the purposes of the study, social interest denotes a legally cognizable collective benefit connected with justice, public order, the protection of rights, life, property, family relations, and stable social cooperation. It is not treated as an unrestricted independent source of legislation; rather, its legal significance must be established through the recognized evidentiary structure of Imami legal theory. The study adopts a qualitative doctrinal and analytical method based on selected Imami works of Qur’anic exegesis, jurisprudence, and usul al-fiqh, supplemented by modern scholarship on Twelver Shi’i legal theory. The analysis distinguishes evidence that reveals or establishes an actual legal ruling from practical principles that determine the legally responsible person’s duty when revealing evidence is unavailable. The findings show that the Qur’an supplies the highest normative framework, while the Sunnah explains, specifies, and applies that framework in legislative, judicial, and governmental contexts. Consensus is authoritative only insofar as it reliably discloses the position of the infallible Imam and therefore cannot independently generate rulings through numerical agreement alone. Rational evidence operates through definitive judgment and necessary implication, not speculative assessments of expediency. The principles of exoneration, precaution, choice, and continuity do not disclose the actual ruling; instead, they regulate conduct under uncertainty and thereby indirectly support the continuity of transactions, rights, and social relations. The study concludes that the adaptability of Imami jurisprudence arises from the differentiated but integrated functions of its evidentiary foundations and from the limits that preserve the authority and stability of Sharia.
This study examines how the Qur’an, the Sunnah, consensus, rational evidence, and the practical principles function within Imami usul al-fiqh in relation to the protection of social interests. For the purposes of the study, social interest denotes a legally cognizable collective benefit connected with justice, public order, the protection of rights, life, property, family relations, and stable social cooperation. It is not treated as an unrestricted independent source of legislation; rather, its legal significance must be established through the recognized evidentiary structure of Imami legal theory. The study adopts a qualitative doctrinal and analytical method based on selected Imami works of Qur’anic exegesis, jurisprudence, and usul al-fiqh, supplemented by modern scholarship on Twelver Shi’i legal theory. The analysis distinguishes evidence that reveals or establishes an actual legal ruling from practical principles that determine the legally responsible person’s duty when revealing evidence is unavailable. The findings show that the Qur’an supplies the highest normative framework, while the Sunnah explains, specifies, and applies that framework in legislative, judicial, and governmental contexts. Consensus is authoritative only insofar as it reliably discloses the position of the infallible Imam and therefore cannot independently generate rulings through numerical agreement alone. Rational evidence operates through definitive judgment and necessary implication, not speculative assessments of expediency. The principles of exoneration, precaution, choice, and continuity do not disclose the actual ruling; instead, they regulate conduct under uncertainty and thereby indirectly support the continuity of transactions, rights, and social relations. The study concludes that the adaptability of Imami jurisprudence arises from the differentiated but integrated functions of its evidentiary foundations and from the limits that preserve the authority and stability of Sharia.