Sahih Muslim Book 7, Hadith Number 3052.

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

Jabir b. ‘Abdullah (Allah be pleased with them) reported that he was asked about riding on a sacrificial animal, and he said: I heard Allah’s Messenger (may peace be upon him) as saying: Ride on it gently, when you have need for it, until you find (another) mount.