Abu Ishaq al-Sabay'ai' أبو إسحاق السبيعي عمرو بن عبد الله · The Book of Endowments

"If you wish, you may 'freeze' it and give it in charity." So he 'froze' it, stipulating that it should not be sold, given as a gift or inherited, and he gave it in charity to the poor, relatives, slaves, the needy, wayfarers and guests. There is no sin on the administrator if he eats from it on a reasonable basis or feeds a friend with no intention of becoming wealthy from it.

"When this Verse was revealed -'By no means shall you attain Al Birr (piety, righteousness--here it means Allah's reward, i.e. Paradise), unless you spend (in Allah's cause) of that which you love'- Abu Talha said: 'Our Lord will ask us about our wealth. I adjure you, O Messenger of Allah! I am giving my land to Allah.' The Messenger of Allah said: 'Make it for your relatives, Hassan bin Thabit and Ubayy bin Ka'b.'"

"I came to Al-Madinah, and I was performing Hajj, and while we were in our camping place unloading our mounts, someone came to us and said: 'The people have gathered in the Masjid.' I looked and found the people gathered, and in the midst of them was a group; there I saw 'Ali bin Abi Talib, Az-Zubair, Talhah and Sa'd bin Abi Waqqas, may Allah have mercy on them. When I got there, it was said that 'Uthman bin 'Affan…