He said it wouldn't take... long.
3 seconds sound clip from the Harvey (1950) movie soundboard.
You can hear this line at 01:34:00.385 in the Blu-ray version of the movie.
Quote context
[...]
- Please.
- Dr. Sanderson said it wouldn't take long.
- He said it wouldn't take... long.
- Well, there's no cause for concern, man.
[...]