Quite. There's not a shadow of doubt. Not the faintest.
5 seconds sound clip from the The Skin Game (1931) movie soundboard.
You can hear this line at 00:42:49 in the Blu-ray version of the movie.
Quote context
[...]
- I remember her quite well. Her name then was...
- I don't want to know, thank you. It's not to be spoken of.
- It will not be spoken of if mr. Hornblower is wise. He is not wise? It must be spoken of.
- I say no. I won't have it. To use a piece of knowledge about a woman? It's repugnant. I won't do it.
- If you had a son tricked into marrying such a woman, would you wish to remain ignorant of it?
- Quite. There's not a shadow of doubt. Not the faintest.
- Yes. I did. I don't like it. I don't like it at all.
- Chloe!
- Oh, mr. Hornblower is looking for you, madam. Shall I tell... I'll tell mr. Hornblow er you're down.
[...]