Sahih al-Bukhari — Good Manners and Form (Al-Adab) — Hadith No: 5971

Narrated Ibn `Umar:`Umar got some property in Khaibar and he came to the Prophet (ﷺ) and informed him about it. The Prophet said to him, "If you wish you can give it in charity." So `Umar gave it in charity (i.e. as an endowment) the yield of which was to be used for the good of the poor, the needy, the kinsmen and the guests

Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "My heirs will not inherit a Dinar or a Dirham (i.e. money), for whatever I leave (excluding the adequate support of my wives and the wages of my employees) is given in charity

Abu 'Abdur-Rahman narrated:When 'Uthman (ra) was circled (by the rebels), he looked upon them from above and said, "I ask you by Allah, I ask nobody but the Companions of the Prophet (ﷺ), don't you know that Allah's Messenger (ﷺ) said, 'Whoever will (buy and) dig the well of Ruma will be granted Paradise,' and I (bought and) dug it? Don't you know that he said. 'Whoever equip the army of 'Usra (i.e., Tabuk's Ghazwa) will be granted Paradise,' and I equipped it ?" They attested whatever he said. When 'Umar founded his endowment he said, "Its administrator can eat from it." The management of the endowment can be taken over by the founder himself or any other person, for both cases are permissible

Narrated Abu Sa`id Al-Khudri:Somebody asked, "O Allah's Messenger (ﷺ)! Who is the best among the people?" Allah's Messenger (ﷺ) replied "A believer who strives his utmost in Allah's Cause with his life and property." They asked, "Who is next?" He replied, "A believer who stays in one of the mountain paths worshipping Allah and leaving the people secure from his mischief