It isn't friendly, whatever it is. Come on, Chewie, let's check it out.
4 seconds sound clip from the Star Wars: Episode V - The Empire Strikes Back movie soundboard.
You can hear this line at 00:18:50 in the Blu-ray version of the movie.
Quote context
[...]
- No. Wait. There's something very weak coming through.
- Sir, I'm fluent in six million forms of communication.
- This signal is not used by the Alliance. It could be an imperial code.
- It isn't friendly, whatever it is. Come on, Chewie, let's check it out.
- Send Rogues 10 and 11 to Station 38.
(Probe droid explodes after being shot)
[...]