Al Qur'an chap 9:29: What was that about the 'Religion of Peace'?
(The Repentance) -
Fight those who do not believe in Allah or in the Last Day and
who do not consider unlawful what Allah and His Messenger have
made unlawful and who do not adopt the religion of truth from
those who were given the Scripture - [fight] until they give
the jizyah willingly while they are humbled.