Muwatta Imam Malik (Riwayat Ibn al-Qasim)

And with this same chain (it is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him) that the Messenger of Allah, peace and blessings be upon him, saw a man who was taking a sacrificial animal (on foot), so the Prophet, peace and blessings be upon him, said: "Ride on it." He said: O Messenger of Allah! This is a sacrificial animal. So the Prophet, peace and blessings be upon him, said: "Ride on it." He said: O Messenger of Allah! This is a sacrificial animal. So the Prophet, peace and blessings be upon him, said for the second or third time: "Woe to you (ride on it)."