Musnad Abu Ya'la al-Mawsili 129:109

Ibrahim narrated to us, Hammad narrated to us, from Thabit and Humayd, from Anas: That the Messenger of Allah (may Allah bless him and grant him peace) and his companions used to pray towards Bayt al-Maqdis. When this verse was revealed: "So turn your face toward al-Masjid al-Haram," a man from Banu Salama passed by and called out to them while they were bowing in the dawn prayer towards Bayt al-Maqdis: "Behold, the Qibla has been changed." So they inclined as they were, while they were bowing, towards the Qibla.