Once, Aqueel, a brother of Ali, asked him to provide some relief for him as he was feeling sore. Ali said that when he got his usual allowance from the Baitul Mal, he would give something out of it to him. They did not satisfy Aqueel. Ali thereupon said, "Then you may break open the locks of the of the ships in the market." Aqeel said, "Do you want me to become a thief." Ali retorted, "Then do you want to break open the lock of the Shop of God and become a brigand instead of the custodian of the Baitul Mal."
"When a person dies, his works end, except for three: ongoing charity, knowledge that is benefited from, and a righteous child who prays for him."
Prophet Mohammed (PBUH)
"The best of what a man leaves behind are three: a righteous child who supplicates for him, ongoing charity the reward of which reaches him, and knowledge that is acted upon after him."
Sunan Ibn Mājah
"Every day two angels come down from Heaven and one of them says, 'O Allah! Compensate every person who spends in Your Cause,' and the other (angel) says, 'O Allah! Destroy every miser.'"
Sahih Bukhari