One day, when Ubhaya Bharati was going to the river for a bath with her women disciples, she saw an ascetic, who had renounced everything in life, sleeping on the wayside, resting his head on a hollow water jug, using it as a pillow and at the same time ensuring that nobody took it away. As long as you have attachment and ego, you can never understand the Atma or experience atmic bliss.

In order to convey a lesson to the ascetic, Ubhaya Bharati spoke within his hearing the following words to one of her disciples: "Look at that ascetic, who has ostensibly renounced every kind of attachment, but he has not given up his attachment to his water jug!" On hearing these words, the ascetic got enraged. He thought: "Is a mere woman entitled to teach me as to how I should behave." While Ubhaya Bharati was returning from the river, the ascetic threw the jug at her feet and said: "Now, see what my renunciation is?" Ubhaya Bharati remarked: "Alas! You are not only filled with attachment (abhimana) but you are also filled with ego (ahamkara)." On hearing these words, the ascetic ran up to her, fell at her feet and pleaded for forgiveness of his faults.

Source: Chinna Katha II, 179