Sahih al-Bukhari 2873
Sahih al-Bukhari · Book 56: Fighting for the Cause of Allah (Jihaad) · The white mule of the Prophet saws
Narrated `Amr bin Al-Harith:
حَدَّثَنَا عَمْرُو بْنُ عَلِيٍّ ، حَدَّثَنَا يَحْيَى ، حَدَّثَنَا سُفْيَانُ ، قَالَ حَدَّثَنِي أَبُو إِسْحَاقَ ، قَالَ سَمِعْتُ عَمْرَو بْنَ الْحَارِثِ ، قَالَ مَا تَرَكَ النَّبِيُّ صلى الله عليه وسلم إِلاَّ بَغْلَتَهُ الْبَيْضَاءَ وَسِلاَحَهُ وَأَرْضًا تَرَكَهَا صَدَقَةً .
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.