It hasn't happened. You might be thinking of
original episode 134
episode 212 or 213
episode 120 or 130 or something... definitely 100-150 in shippuden. also in episode like 90 in normal naruto
They first fought on top of the hospital
episode 60 in naruto
it starts at episode 163
episode 212 or 213
Sasuke fights Deidara on episode 122
there hasn't been a proper fight between them, even in the manga they haven't fought yet
episode 120 or 130 or something... definitely 100-150 in shippuden. also in episode like 90 in normal naruto
They first fought on top of the hospital
Naruto and Sakura have found sasuke in naruto shippuden episode 50 but he leaves with Orochimaru. Naruto also finds Sasuke in the naruto shippuden movie Bonds. Later naruto, sakura, and kakashi confront Sasuke after Sasuke's fight with Danzo.
Sasuke won the 1st fight and would not go to konoha
that would be episodes 118 134 135 Your forgetting 129 and a few after...The very end of 121 it starts and then so on until Temari saves him.
episode 60 in naruto
no one knows. Naruto said himself that he thinks that the both of them will fight and die. But I don't think so.
naruto fight against sasuke
a feww episodes after the part where gaara vs saskue in chunin exams