佛陀行至一處芒果林中微笑，向阿難講述一位國王見白髮而出家為苦行者的故事，並說明該王的傳承僅能引至梵天，唯有佛陀的教法能導向究竟證悟。

A discourse in which the Buddha, smiling at a certain spot in a mango grove, tells Ānanda the story of a king who renounced the world on seeing his first grey hair, explaining that while that king’s tradition led only to the Brahmā world, the Buddha’s own teaching leads to full enlightenment.