It won't take long. You'll have to wait.
2 seconds sound clip from the Harvey (1950) movie soundboard.
You can hear this line at 01:35:22.884 in the Blu-ray version of the movie.
Quote context
[...]
- Well, I could've sworn I brought my coin purse. Where is it? Oh, the idea!
- It won't take long. You'll have to wait.
- Yes. It'll only take a few minutes.
- I told you, it'll only take a few minutes.
[...]