Narrated Ibn Umar (may Allah be pleased with them both): Umar bin Khattab (may Allah be pleased with him) expelled the Jews and Christians from the land of Hijaz. And when the Prophet (peace and blessings of Allah be upon him) conquered Khaybar, he also intended to expel the Jews from there. When he (peace and blessings of Allah be upon him) gained victory over it, its land became the property of Allah, His Messenger (peace and blessings of Allah be upon him), and the Muslims. He intended to expel the Jews from there, but the Jews requested the Messenger of Allah (peace and blessings of Allah be upon him) to let them stay there. They said, "We will do all the work (of the land of Khaybar) ourselves and will take half of its produce." Upon this, the Messenger of Allah (peace and blessings of Allah be upon him) said, "Alright, we will let you stay here on this condition as long as we wish." So they remained there, and then Umar (may Allah be pleased with him) exiled them towards Tayma and Ariha. (Because they were always secretly plotting against the Muslims)