http://en.wikipedia.org/wiki/Achtiname_of_Muhammad
"This is a letter which was issued by Mohammed, Ibn Abdullah, the
Messenger, the Prophet, the Faithful, who is sent to all the people
as a trust on the part of God to all His creatures, that they may
have no plea against God hereafter. Verily God is the Mighty, the
Wise. This letter is directed to the embracers of Islam, as a
covenant given to the followers of Nazarene in the East and West,
the far and near, the Arabs and foreigners, the known and the
unknown.
This letter contains the oath given unto them, and he who disobeys
that which is therein will be considered a disobeyer and a
transgressor to that whereunto he is commanded. He will be regarded
as one who has corrupted the oath of God, disbelieved His Testament,
rejected His Authority, despised His Religion, and made himself
deserving of His Curse, whether he is a Sultan or any other believer
of Islam. Whenever monks, devotees and pilgrims gather together,
whether in a mountain or valley, or den, or frequented place, or
plain, or church, or in houses of worship, verily we are [at the]
back of them and shall protect them, and their properties and their
morals, by Myself, by My Friends and by My Assistants, for they are
of My Subjects and under My Protection.
…
They must not give anything of their income but that which pleases
them—they must not be offended, or disturbed, or coerced or
compelled.
…
They shall not be imposed upon by anyone to undertake a journey, or
to be forced to go to wars or to carry arms; for the Islams have to
fight for them. Do no dispute or argue with them, but deal according
to the verse recorded in the Koran, to wit: ‘Do not dispute or argue
with the People of the Book but in that which is best’ [29:46]. Thus
they will live favored and protected from everything which may
offend them by the Callers to religion (Islam), wherever they may be
and in any place they may dwell.
…
...the Islams must protect them and defend them against others. It
is positively incumbent upon every one of the Islam nation not to
contradict or disobey this oath until the Day of Resurrection and
the end of the world."