Narrated 'Abdullah bin Buraidah:
"I heard my father Buraidah saying: 'I was walking with the Prophet (ﷺ) when a man came to him with a donkey, so he said: "O Messenger of Allah! Ride" and the man moved toward the back. The Messenger of Allah (ﷺ) said: "No, you have more right to the front of your beast, unless you allot it for me." He said: "I have allotted it for you.'" He said: 'So he rode.'" (FR)
English reference (FR): Vol. 5, Book 41, Hadith 2773 (FR)
Arabic reference (FR): Book 43, Hadith 3000 (FR)