Lando Calrissian and poor Chewbacca never returned from this awful place.
4 seconds sound clip from the Star Wars: Episode VI - Return of the Jedi movie soundboard.
You can hear this line at 00:05:07.708 in the Blu-ray version of the movie.
Quote context
[...]
- The Emperor does not share your optimistic appraisal of the situation.
- But he asks the impossible. I need more men.
- Then perhaps you can tell him when he arrives.
- That is correct, Commander. And he is most displeased with your apparent lack of progress.
- We shall double our efforts.
- I hope so, Commander, for your sake.
- The Emperor is not as forgiving as I am.
- Of course I'm worried. And you should be, too.
- Lando Calrissian and poor Chewbacca never returned from this awful place.
- R2, are you sure this is the right place?
- I'd better knock, I suppose.
- There doesn't seem to be anyone here.
[...]