Once, a rich boy went to visit his native village. It was a sunny afternoon and he was feeling very hungry. So, he bought some food from a farmer and sat under a tree to eat.
Suddenly, he saw a poor boy standing at a distance and found that he was very hungry. He decided to leave some food for the poor boy. But, as he was very hungry, he forgot. He ate all the things.
When he drank water, he saw something written at the base of the vessel, "Those who don't care for poor have no right to have food."
So the rich boy bought some food for the poor boy and gave it to him.