Generosity was one of the main attributes of Ali. According to Ali when someone in need asks for your help and you help him that is liberality or munificence. When you help a man in need before he asks of your help that is generosity. In Arab annals, Hatim a Bedouin is known for his generosity. According to the accounts that have come down to us, Ali out-classed him in the matter of generosity. Ali used to say "Woe to that man who spends his wealth in buying male and female slaves, but spends not his money on the free-born who, with a little alms would become enslaved in gratitude to him for ever."
"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