Moshe Gil, The Babylonian encounter and the Exilarchic House in the light of Cairo Geniza documents and parallel Arab sources, Judaeo Arabic Studies, (2013), p. 162 [1]
Shaykh Muhammad Mahdi Shams al-Din, The Authenticity of Shi'ism, Shi'ite Heritage: Essays on Classical and Modern Traditions (2001), p. 49 [2]
Peter Crawford, The War of the Three Gods: Romans, Persians and the Rise of Islam (2013), p. 207 [3]
Carla Bellamy, The Powerful Ephemeral: Everyday Healing in an Ambiguously Islamic Place (2011), p. 209 [4]