Sahih Muslim
The Book Pertaining to the Oath, for Establishing the Responsibility of Murders, Fighting, Requital and Blood-Wit (Kitab Al-Kitab Al-Qasama wal-Muharaba wal-Qisas wal-Diyat)
Book Number: 016 / Hadith Number: 4162
Abu Bakra reported that when it was the day of (Dhu'l-Hijja) Allah's Apostle (may peace be upon him) mounted the camel and addressed and a person had been holding its nosestring. The rest of the hadith is the same.