There's no reason for them to be involved.
4 seconds sound clip from the The Big Knife (1955) movie soundboard.
You can hear this line at 01:23:36 in the Blu-ray version of the movie.
Quote context
[...]
- She'll go unremembered by the end of the week.
- Then we'll have to tell him, won't we?
- You find him, Smiley. I'll get back Nat.
- There's no reason for them to be involved.
- But there's plenty of reason for me to be involved even deeper than before?
- And don't raise your voice again.
- Don't you remember? I'm the warrior minstrel of the forlorn hope.
- Sorry, I didn't mean to interrupt.
[...]