We recently discovered a report from Syria in the New York Observer, September 29, 1881  which had an interesting article discussing the existence of a document, signed by Muhammad, which provided for the protection of Christians. The article in its entirety is shown through the link. One website  states:
“During our research with the Greek Orthodox Church, we have located numerous documents hand signed by Muhammad granting permanent protection to Christians and to their churches. These documents have been in existence since the original order given by Muhammad in 628 ACE. We have located several recent documents which sustain the original charter of rights. We question why are these mandates not known to the Muslim world? Why does the media avoid reporting these critical religious instructions?”
Can anyone comment on the authenticity of this covenant as described in the NY Observer?