When I was seven & newly gone forth, having conquered with my power the great powerful serpent, I was fetching water for my preceptor from the great lake, Anotatta,1 when the Teacher saw me & said: "Look, Sariputta, at that one, the young boy coming there, carrying a pot of water, well-centered within, his practices — inspiring; his bearing — admirable. He's Anuruddha's novice, mature in his powers, made thoroughbred by a thoroughbred, good by one who is good, tamed by Anuruddha, trained by one whose task is done. He, having reached the highest peace & realized the unshakable, Sumana the novice wants this: 'Don't let anyone know me.'"
Note
1. Anotatta: A fabulous lake located in the Himalayas, famed for the purity of its cool waters. Sumana would have had to use his psychic powers to fetch water from there.