It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "I have been sent with the sword so that only Allah, Who has no partner, may be worshipped. My sustenance has been placed under the shadow of my spear. Humiliation has been decreed for those who oppose my commands, and whoever imitates a people will be counted among them."