RT Article T1 Dreams of Hagia Sophia: The Muslim Siege of Constantinople in 674 CE, Abū Ayyūb al-Anṣārī, and the Medieval Islamic Imagination JF The Islamic scholarly tradition SP 131 OP 146 A1 Khalek, Nancy LA English PB Brill YR 2011 UL https://ixtheo.de/Record/755842294 SN 9789004194359 SN 9004194355