Hafiz Rashid Yaqub, and Dr. Muhammad Abdullah. “An Analytical Study of Qalb, Ṣadr, Fu’ād, and Lubb in the Qur’an: Meaning, Hierarchy, and Interrelationship”. AL-HAYAT Research Journal (AHRJ) 2, no. 1 (December 31, 2024): 180–195. Accessed January 29, 2026. https://hrj.com.pk/index.php/hrj/article/view/154.