Musnad Abu Ya'la al-Mawsili 161:19

Ja'far ibn Humayd narrated to us, Ibn al-Mubarak narrated to us, from Ma'mar, from Yahya ibn Abi Kathir, from 'Ikrimah, from Abu Hurayrah: That the Messenger of Allah (ﷺ) passed by a man driving a sacrificial camel (badana). He said, "Ride it." The man said, "It is a sacrificial camel." He said, "Ride it." He said: So I saw him accompanying the Prophet (ﷺ), and there was a sandal around its neck.