Musnad Ahmad 941:17

Qutaybah ibn Sa'id narrated to us, Yahya ibn Zakariya ibn Abi Za'idah narrated to us, from Muhammad ibn Ishaq, from al-Zuhri, from 'Urwah, from Usamah ibn Zayd, who said: I entered with the Messenger of Allah, may Allah bless him and grant him peace, upon 'Abdullah ibn Ubayy during his illness to visit him. The Prophet, may Allah bless him and grant him peace, said to him: "I used to forbid you from loving the Jews." 'Abdullah said: "As'ad ibn Zurarah hated them, and he died."