Nafi' narrates from Abdullah bin Umar (may Allah be pleased with them both) that Umar (may Allah be pleased with him) expelled the Jews and Christians from the land of the Hijaz. After the conquest of Khaybar, the Messenger of Allah (peace and blessings be upon him) had intended to expel the Jews, since after the conquest the land was to belong to Allah, His Messenger and the believers. The Jews asked the Messenger of Allah (peace and blessings be upon him) to appoint them to work the land in return for half the fruit. The Messenger of Allah (peace and blessings be upon him) said: "We will let you remain as long as we wish." So he let them remain; then Umar (may Allah be pleased with him), during his rule, expelled them to Tayma and Ariha.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجزية / 18746