Hakim, Muhammad Tahir. 2018. “Whether Nafal Prayers Become Mandatory After Inititation: ھل تلبس بالمندوب یصیرہ واجبا”. The Islamic Culture "As-Saqafat-Ul Islamia" الثقافة الإسلامية - Research Journal - Sheikh Zayed Islamic Centre, University of Karachi, no. 25 (December). https://theislamicculture.com/index.php/tis/article/view/311.