The name of this religion is Islam, the root of which is Silm and Salam which means peace. Salam may also mean greeting one another with peace. One of the beautiful names of God is that He is the Peace. It means more than that: submission to the One God, and to live in peace with the Creator, within one's self, with other people and with the environment. Thus, Islam is a total system of living. A Muslim is supposed to live in peace and harmony with all these segments; hence, a Muslim is any person anywhere in the world whose obedience, allegiance, and loyalty are to God, the Lord of the Universe.
"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