Rock, it's 3:00 in the morning.
6 seconds sound clip from the Rocky II movie soundboard.
You can hear this line at 01:17:15.181 in the Blu-ray version of the movie.
Quote context
[...]
- Can't I stay? I'll be quiet.
- I can't do any more of this watching stuff.
- Rock, it's 3:00 in the morning.
- You know that I went up to your house. They told me you was here.
- That Adrian, she's a good girl.
- Me, you know, I'm sorry for both of you.
- Well, ain't nothing I can do, is there?
[...]