He says he would've known you anywhere.
2 seconds sound clip from the Harvey (1950) movie soundboard.
You can hear this line at 00:15:18.626 in the Blu-ray version of the movie.
Quote context
[...]
- Aunt Ethel, don't you want some tea?
- There's punch if you don't like tea.
- But I do like tea. Stop pulling me, you two.
- Oh, any night. Any night at all. I'd be delighted. I'd like to meet Ordway.
- And now, Aunt Ethel, I'd like you to meet Harvey.
- That's right. Well, this is the one. No, no, she's the one!
- He says he would've known you anywhere.
- Well, now we must go in and greet the rest of our friends. Come along, Harvey.
- Oh, uh... Aunt Ethel, will you pardon me? You're standing in his way. There we are.
[...]