The Book of Pilgrimage (Kitab Al-Hajj)

Muslim :: Book 7 : Hadith 3049

Anas reported that Allah's Messenger (may peace be upon him) 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.

Source materials are from the University of Southern California MSA site
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