From Sahih Muslim (Hadith 3211):
Anas reported that Allah's Messenger (ﷺ) happened to pass by a person who was driving a sacrificial camel, whereupon he (the Holy Prophet) said:Ride on It. He said: It is a sacrificial camel. Thereupon he (the Holy Prophet) said twice or thrice: Ride on it
Reference: Muslim 3211