It is narrated from Hazrat Buraidah (may Allah be pleased with him) that whenever the Noble Prophet (peace and blessings be upon him) appointed someone as the commander of a detachment or an army and sent him off, he would especially advise him to fear Allah regarding himself and would emphasize treating the Muslims who were with him in the best manner. Then he would say: Fight in the way of Allah in the name of Allah, fight those who disbelieve in Allah. When you meet your enemy, invite them to accept one of three things. Whichever of these they accept, accept it from them and refrain from fighting them. First, invite them to Islam. If they accept, then accept it from them. Then invite them to migrate from their land to the abode of the emigrants, and inform them that if they do so, they will have the same rights and duties as the emigrants. If they refuse and prefer to remain in their own land, then inform them that they will be considered like the Bedouin Muslims; Allah’s commands will apply to them as they apply to all Muslims, but they will not have any share in the spoils of war unless they fight alongside the Muslims. If they refuse this, then invite them to pay the jizya. If they accept, then accept it from them and refrain from fighting them. But if they refuse even this, then seek Allah’s help and fight them.