Its power lasts only from sunset to sunrise. During the hours of the day, it must rest in the earth in which it was buried.
11 seconds sound clip from the Dracula (1931) movie soundboard.
You can hear this line at 00:46:21 in the Blu-ray version of the movie.
Quote context
[...]
- I don't mean to be rude, but that's the sort of thing I'd expect one of the patients here to say.
- Yes, and that is what your English doctors would say, your police.
- The strength of the vampire is that people will not believe in him.
- Professor, vampires only exist in ghost stories.
- Renfield? What are you doing there? Come here.
- Did you hear what we were saying?
- Yes, I heard something. Enough.
[...]