Al-Shurman , K. . “The Habits of Effectiveness of the Muslim Personality in the Light of Al-Nawawi’s Forty Hadiths”. Dirasat: Shari’a and Law Sciences, vol. 47, no. 3, Sept. 2020, pp. 151-67, https://dsr.ju.edu.jo/djournals/index.php/Law/article/view/3250.