The Islamic State releases a copy of Imām Abū al-Ma'ālī al-Jūwaynī's, Shaykh Ḥāfiẓ Bin Aḥmad al-Ḥakamī's, and 'Umar Bin Muḥammad al-Bayqūni's books: "'Papers on the Principles of Jurisprudence,' 'The Ladder to Reach the Fundamentals of Tawḥīd and Following the Prophet,' 'The Bayqūni System in Ḥadīth Terminology', Second Editions"