The document summarizes the story of the two sons of Adam from the Quran. It describes how one son killed the other out of envy because his sacrifice was accepted by God while the other's was not. Despite warnings from his brother, he gave in to his ego and murdered him. God then sent a crow to show him how to bury the body, and he regretted his actions. The story illustrates the consequences of sinful acts like pride, envy and murder.