Once upon a time Brahmadatta was ruling Benares in Kasi. The Bodhisatta born as king’s son and was duly named Prince Mahimsasa. By the time he could run about, a second son was born to the king, and the name they gave this child was Prince Moon; but by the time he could run about, the Bodhisatta’s mother died. Then the king married another queen, who was his joy and delight. For them another prince was born whom they named Prince Sun. In his joy at the birth of the boy, the king promised to grant her any boon she might ask on the child’s behalf. But the queen treasured up the promise to be fulfilled at her own good time hereafter. Later, when her son had grown up, she said to the king, “Sir, when my boy was born, you granted me a boon to ask for him. Let him be king.”

The king said,“No; I have two sons, radiant as flaming fires; I cannot give the kingdom to your son.” But undaunted by this refusal, the queen kept on plaguing him time after time, to grant her request. The king, fearing lest the woman should plot evil against his sons, sent for them and said, “My children, when Prince Sun was born, I granted a boon; and now his mother wants the kingdom for him. I have no wish to give him the kingdom; but women are naturally wicked, and she will be plotting evil against you. You had better retire to the forest, to return at my death to rule in the city which belongs by right to our house.” So saying, with tears and lamentations, the king kissed his two sons on the head and sent them to forest.

As the princes after telling good-bye to King left the place. By the time Prince Sun was playing in the courtyard. And no sooner did he learn what was the matter then he made up his mind to go with his brothers. So he too went off in their company.

The three came to the region of the Himalayas; and here the Bodhisatta was sitting at the foot of a tree. He said to Prince Sun, “Run down to the pool; drink and bathe there; and then bring us too some water back in a lotus-leaf.”

While taking water, a water-sprite came from the stream. Then the Bodhisatta said to the water-sprite, “Friend, it is in consequence of your own evil deeds in times past that you have now been born a demon subsisting on the flesh and blood of other living creatures; and in this present birth too you are continuing to do evil. This evil conduct will for ever bar you from escaping re-birth in hell and the other evil states. From this time onwards renounce evil and live virtuously.

Having working the demon’s conversion, the Bodhisatta continued to dwell at that spot under his protection, until one day he read in the stars that his father was dead. Then taking the water-sprite with him, he returned to Benares and took possession, of the kingdom, making Prince Moon his viceroy and Prince Sun his general. For the water–sprite he made a home in a pleasant spot and took measures to ensure his being provided with the choicest garlands, flowers, and food. He himself ruled in righteousness until he passed away to fare according to his deeds.