The pinnacle of earthly bliss was reached when Adam and Eve witnessed the birth of their first children, a set of twins. Adam was a devoted father and Eve a contented mother. The twins were Cain (Qabil) and his sister. Later Eve gave birth to a second set of twins, Abel (Habil) and his sister. The family enjoyed the bounties and fruits of the earth provided by their Lord. The children grew up to be strong and healthy young adults. Cain tilled the land, while Abel raised cattle.
"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