Good deeds bring everlasting rewards

According to the Sahih Muslim, the Prophet Mohammed said: “When a man dies, his deeds come to an end except, for three things: Sadaqah jariyah [ceaseless charity], knowledge which is beneficial, or a virtuous descendant who prays for him [the deceased].”
“His deeds come to an end” means he or she is unable to perform any deeds any more and therefore does not receive reward for actions anymore. But there are three categories of actions for which he or she can receive reward even after death. 
First, sadaqah jariyah: This is any good deed from which people continue to benefit despite the demise of the person who originated it. For example, the establishment of a madrassa or masjid from which people are rightly guided will be sadaqah jariya for the person who established it. Having a well dug or a shade or fruit tree planted or built hospital will also bring reward, as long as the well or tree benefits people. 
Second, “knowledge which is beneficial” means knowledge imparted verbally or by any other means through which people become better Muslims. As long as people benefit from this knowledge, the teacher will receive reward for it. 
The third source of reward is having virtuous descendants. Training children on the right lines is essential, so that after a person’s death they continue to pray for him or her. The prayer of righteous children in favour of parents is very useful.
Ashfaq Sharif