I knew that a collection of sources did exist online somewhere. It seems that Peter Kirby, back in 2003, produced one and it is here. It is excerpted from Robert G. Hoyland, Seeing Islam as Others Saw It: A Survey and Evaluation of Christian, Jewish and Zoroastrian Writings on Early Islam. (1997) Nearly all of it is about the Islamic invasions, as might be expected.
July 17th, 2009 by Roger Pearse