A Fierce Battle of Rolling Thunder!

is episode 105 of the original Naruto anime.

Synopsis
Fukusuke continues to celebrate with women and food when Aoi warns him that he might be celebrating prematurely. Naruto Uzumaki, carrying Idate, ascends the long flight of stairs to the Modoroki Shrine. Idate grabs the orb and heads out on his own two feet, but they are soon confronted by Aoi, waiting with his sword of the Thunder God. Both Naruto's Rasengan and Sasuke's Chidori are repelled by the sword, though the latter is able to crack it slightly.