Farther east in the Malay world, Islam began to spread in the 12th century in northern Sumatra and soon Muslim kingdoms were established in Java, Sumatra and mainland Malaysia. Despite the colonization of the Malay world, Islam spread in that area covering present day Indonesia, Malaysia, the southern Philippines and southern Thailand, and is still continuing in islands farther east.
"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