Musannaf Ibn Abi Shayba 3:2686

Hushaym narrated to us, he said: Yahya ibn Sa'id informed us, from Abu Bakr ibn Muhammad, that he sent [a message] to the people of Dhu al-Hulayfah: "Do not perform the Jumu'ah prayer there, and enter into the mosque, the mosque of the Messenger of Allah, may Allah bless him and grant him peace."