The Prophet (ﷺ) did not leave anything behind him after his death except a white mule, his arms and a piece of land which he left to be given in charity.
Sahih al-Bukhari Book 56, Hadith 89
← Previous Hadith The Prophet (ﷺ) had a she camel called Al Adba which could not be excelled in a race. (Humaid, a subnarrator said, "Or could hardly be excelled.") Once a bedouin came riding a camel below six years of age which surpasses it (i.e. Al-`Adba') in the race. The Muslims felt it so much that the Prophet (ﷺ) noticed their distress. He then said, "It is Allah's Law that He brings down whatever rises high in the world."

Sahih al-Bukhari Book 56, Hadith 88 Next Hadith → that a man asked him. "O Abu '`Umara! Did you flee on the day (of the battle) of Hunain?" He replied, "No, by Allah, the Prophet (ﷺ) did not flee but the hasty people fled and the people of the Tribe of Hawazin attacked them with arrows, while the Prophet (ﷺ) was riding his white mule and Abu Sufyan bin Al-Harith was holding its reins, and the Prophet (ﷺ) was saying, 'I am the Prophet (ﷺ) in truth, I am the son of `Abdul Muttalib.' "

Sahih al-Bukhari Book 56, Hadith 90