Maigari Dutsinma A. The Codification of Hadith during the Era of Umar bin Abdul Aziz: Methodological Transformation and Its Impact on the Development of Hadith Studies. DEUJIS [Internet]. 2025 Feb. 22 [cited 2026 Apr. 25];3(01):159-68. Available from: https://journal.walideminstitute.com/index.php/deujis/article/view/275