Musnad Ahmad 1013:10

Waki’ narrated to us, Rabi’ah bin ‘Uthman al-Taymi narrated to us, from ‘Imran bin Abi Anas, from Sahl bin Sa’d, who said: Two men differed during the time of the Messenger of Allah, may Allah bless him and grant him peace, regarding the mosque which was founded on righteousness. One of them said: "It is the Mosque of the Messenger," and the other said: "It is the Mosque of Quba." They came to the Prophet, may Allah bless him and grant him peace, and asked him, so he said: "It is this mosque of mine."