Sahih Muslim Book 7, Hadith Number 3046.

Chapter : It is permissible to ride the sacrificial animal (camel) for one who is in need of it.

Abu Huraira (Allah be pleased with him) reported that Allah’s Messenger (may peace be upon him) saw a person who was driving a sacrificial camel (and told him to ride on it. Thereupon he said: Messenger of Allah, it is a sacrificial camel. He told him again to ride on it; (when he received the same reply) he said: Woe to you, (he uttered these words on the second or the third reply).