Musannaf Ibn Abi Shayba 28:463

Waki’ narrated to us, from Ibrahim ibn Maymun, from Ishaq ibn Sa’id ibn Samurah ibn Jundub, from his father, from Abu Ubaydah ibn al-Jarrah: That the last speech the Messenger of Allah, may Allah bless him and grant him peace, spoke was that he said: "Expel the Jews from the land of the Hijaz, and the people of Najran from the Arabian Peninsula."