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.

مَا تَرَكَ النَّبِيُّ ﷺ إِلاَّ بَغْلَتَهُ الْبَيْضَاءَ وَسِلاَحَهُ وَأَرْضًا تَرَكَهَا صَدَقَةً

that a man asked him. "O Abu 'ʿUmara! 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 ʿAbdul Muttalib.' "

لَهُ رَجُلٌ يَا أَبَا عُمَارَةَ وَلَّيْتُمْ يَوْمَ حُنَيْنٍ قَالَ لاَ وَاللَّهِ مَا وَلَّى النَّبِيُّ ﷺ وَلَكِنْ وَلَّى سَرَعَانُ النَّاسِ فَلَقِيَهُمْ هَوَازِنُ بِالنَّبْلِ وَالنَّبِيُّ ﷺ عَلَى بَغْلَتِهِ الْبَيْضَاءِ وَأَبُو سُفْيَانَ بْنُ الْحَارِثِ آخِذٌ بِلِجَامِهَا وَالنَّبِيُّ ﷺ يَقُولُ أَنَا النَّبِيُّ لاَ كَذِبْ أَنَا ابْنُ عَبْدِ الْمُطَّلِبْ