When Ali came to know of the assassination of Uthman, he raised his hands to the heavens and said repeatedly: "By God, I never wished for his murder, nor did 1 abet his murder.) God be my witness that I am not to be blamed for this catastrophe. Those who have done the heinous deed have done a great disservice to Islam".
"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