Kelly Bulkeley; Kate Adams; Patricia M. Davis (2009). "6 (Dreaming in the Life of the Prophet Muhammad)". Dreaming in Christianity and Islam: Culture, Conflict, and Creativity. Rutgers University Press. p. 87. ISBN9780813546100.
Neal Robinson (2013), Islam: A Concise Introduction, Routledge, ISBN978-0878402243, Chapter 7, pp. 85–89