It's a lie.
3 seconds sound clip from the It's a Wonderful Life (1946) movie soundboard.
You can hear this line at 01:57:40 in the Blu-ray version of the movie.
Quote context
[...]
- Please let me come in, and keep me here until I get over it.
- Get over what? I don't take in strangers unless they're sent here by somebody I know.
- Well, I know everybody you know. Your brother-in-law, Uncle Billy.
- You know him? Well, sure I do.
- When did you see him last? Today over at his house.
- I've heard of things like this. You got me in some kind of a spell or something.
- Well, I'm gonna get out of it. I'll get out of it. I know how, too. I...
- The last man I talked to, before all this stuff started happening to me, was Martini.
[...]