You can do your homework.
3 seconds sound clip from the Rocky IV (1985) movie soundboard.
You can hear this line at 00:12:44 in the Blu-ray version of the movie.
Quote context
[...]
- Whatever he hits, he destroys.
- Why do you want to fight again?
- Let's just say it's something I believe in.
- Okay. Later, Dad. Later, Uncle Paulie. Later, Apollo.
- Yo, don't you think people are expecting to see Rocky whack this bum out first?
- Yeah, yeah, and he will, when it's for real.
[...]