Ali issued the following instructions to a General in the matter of the treatment to be accorded to rebels: "If the rebels repent and return to obedience, then accept their repentance and do not be harsh with them. If they persist in their revolt, and are not prone to listen to reason, then suppress them with the aid of the people who are loyal to you. See that you depend only on these people who are sincere to you. Do not care for those who are in different. It is better not to own a person who is not with you whole-heartedly. It is better that such men should remain sitting and should not stand up."
"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