Wikipedia
Ya`fūr (also variously rendered as Ya'foor, Ya'four, `Ufayr, `Ofayr and so on, meaning "Deer" in Arabic) was a donkey used as a mount by the Islamic prophet Muhammad, who was said to have often ridden it bareback. There are many tales of this donkey but the most common would be that the donkey is recorded to have been a gift from the Byzantine governor of Egypt some time between 628 and 632 AD (8–11 AH). According to an Islamic tradition, it had the power of speech and told Muhammad that it was the last of a line of donkeys ridden by prophets and was a descendant of the donkey ridden by Jesus in his triumphal entry into Jerusalem, which was also called Ya`fūr. The tradition holds that Ya`fūr committed suicide in despair after Muhammad died by throwing itself into a well, though these accounts are held to be unreliable in hadith studies. In the centuries after Muhammad's death, the donkey's name and symbolism was repeatedly adopted by Islamic religious figures and rulers.