Narrated by Sayyiduna Abdullah bin Umar (may Allah be pleased with them both): The Messenger of Allah (peace and blessings be upon him) said: I have been commanded (by Allah) to fight the people until they testify that there is no deity except Allah and that Muhammad (peace be upon him) is the true Messenger of Allah, and establish prayer and give zakat. When they do this, they will have protected their lives and property from me, except for the right of Islam. (As for what is in their hearts,) their reckoning is with Allah.