法苑珠林 10.92

10.92

又瑞應經云。太子年至十四啟王出游。因果經云。有婆羅門子。名優陀夷。聰明智慧。王令與太子為友。汝可說之勿使出家。其依王勅至太子所。而作是言。王勅令與太子為友。朋友之法其要有三。一者有過失輒相諫曉。二者見有好事深生隨喜。三者在於苦厄不相棄捨。今獻誠言願不見責。古世諸王悉受五欲後方出家。太子云何而頻棄捨。大子答曰此諸王等悉不免苦故吾不同耳。

Furthermore, the Ruiying jing states: When the prince reached the age of fourteen, he asked the king's permission to go on an excursion. The Yinguo jing states: There was the son of a brāhmaṇa named Udāyin, clever and wise. The king ordered him to be a friend to the prince, saying: "You must persuade him not to leave home." Complying with the royal decree, he went to the prince's presence and spoke these words: "The king has ordered me to be a friend to the prince. There are three essential principles in friendship: first, whenever there is a fault, to admonish and instruct each other; second, seeing good deeds, to deeply rejoice in them; third, when in distress and difficulty, not to abandon each other. Now I offer sincere words, praying that I will not be blamed. The kings of ancient times all enjoyed the five desires and only afterwards left home. Why does the prince repeatedly abandon them?" The prince answered: "None of those kings escaped suffering; therefore, I am not like them."