Al-Salem, Abdullah Mohammed. “The Significance and Influence of Caliph Umar Ibn Al-Khattab’s Endowment (Waqf) in Islamic Jurisprudence and Legal Precedents”. Journal of Arts 12, no. 1 (March 19, 2024): 59–83. Accessed May 20, 2024. http://journal.tu.edu.ye/index.php/artsmain/article/view/1832.