Yesiree, as strange as it may seem, I've seen the zombie you speak of and the old witch that brought him to life with her voodoo magic.
11 seconds sound clip from Scooby-Doo, Where Are You! - Which Witch Is Which (S1E13).
You can hear this line at 00:02:56.716 in the Blu-ray version of the episode.
Quote context
[...]
- You mean, this is the first time you've ever taken it?
- Yeah, but it's the last time, I hope.
- Maybe not. Look! There's someone up ahead. Let's ask him how to get out of here.
- Excuse me. Kind sir, can you show us the way to the main road?
- I guess this is Swamp's End. I don't know where it is, but I'm sure glad we found it.
- Me, too.
- You mean, there's a witch living in that swamp, too?
- Yep. She showed up about 6 months ago.
- Smoke of darkness, demon of evil, take the form of the living and come forth from the flame!
- And ever since then, no one's ever dared to go into the swamp.
[...]