`Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that` the Messenger of Allah (peace and blessings be upon him) said: I have been commanded to fight the people until they testify that there is no deity worthy of worship except Allah, and that Muhammad (peace and blessings be upon him) is His Messenger, and establish prayer, and give zakat. Then when they do this, they have protected their lives and wealth from me except by right, and their reckoning is with Allah the Exalted.