Musnad Ahmad 33:1104

Husayn narrated to us, Sharik narrated to us, from al-Ash'ath—meaning Ibn Siwar—from al-Hasan, from Jabir, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "No polytheist shall enter this mosque of ours after this year of ours, except for the people of the covenant and your servants."