Amanullah M. The Validity of Salah according to al-Ghazali with Special Reference to the Obligation to Observe Hudur al-Qalb throughout the Salah. JoF [Internet]. 2004 Dec. 30 [cited 2024 May 19];1:29-42. Available from: https://fiqh.um.edu.my/index.php/fiqh/article/view/2572