Uthman said that he was surprised at the conduct of a person: Who knows the world to be transient, yet loves it; Who knows death to be certain, yet does not take it seriously; Who believes in hell, yet commits sin; Who believes in the existence of God, yet seeks assistance from others, Who is aware of paradise, yet is engaged in worldly pleasures; Who knows Satan to be his enemy, yet obeys its dictates; Who believes in predestination, Yet feels aggrieved with what happens; Who knows that account is to be rendered on the day of resurrection' Yet hoards wealth.
"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