What was Prophet Muhammad (Peace be upon him) commanded to do by Allah?
      Narrated Ibn 'Umar:                          Allah's Apostle said: "I have been ordered (by Allah) to fight against     the people until they testify that none has the right to be worshipped     but Allah and that Muhammad is Allah's Apostle, and offer the prayers      perfectly and give the obligatory charity, so if they perform that,      then they save their lives and property from me except for Islamic laws     and then their reckoning (accounts) will be done by Allah."