Musannaf Ibn Abi Shayba 3:3781

Abu Bakr narrated to us, he said: Hushaym narrated to us, from Humayd, who said: Anas used to perform the Jumu'ah prayer with the Imam. He was in the house of Nafi' ibn 'Abd al-Harith, a house overlooking the mosque, which had a door leading to the mosque. He used to perform the Jumu'ah prayer in it and follow the Imam.