Naruto Episode 52
Naruto reluctantly agrees to train under Ebisu, and Ebisu tries to teach Naruto how to walk on water. As Naruto practices, Ebisu catches an old man (later revealed to be Jiraiya) spying on a women’s bathhouse. As Ebisu rushes to apprehend him, Jiraiya knocks him out with a single hit, leaving Naruto without a tutor.
Source: Wikipedia
Naruto Episode 52 – Ebisu Returns: Naruto’s Toughest Training Yet!
