He's not wrong.
3 seconds sound clip from the The Good, the Bad and the Ugly (1966) movie soundboard.
You can hear this line at 00:11:48 in the Blu-ray version of the movie.
Quote context
[...]
- I can't tell Baker what happened to the money.
- Word's around you had a visitor, and Baker knows it.
- Well, Jackson was here or Baker's got it all wrong.
- Maybe Baker would like to know just what you and Jackson had to say about the cash box.
- That's not what I'm being paid for.
- I'm only interested in what name Jackson's hiding under now.
- Why do you think Jackson may be assuming another name?
- I would have found him already.
[...]