- Well, there's only one place to find the answer.
- Like, in the phone book, I hope.
- No, Shaggy. In the swamp.
- I had to ask.

Shaggy Rogers (Casey Kasem), Fred Jones (Frank Welker)

11 seconds sound clip from Scooby-Doo, Where Are You! - Which Witch Is Which (S1E13).

You can hear this line at 00:07:12.499 in the Blu-ray version of the episode.

Quote context

[...]

- Hey, Scooby, I think I found Zeb... only I think the witch found him first.

- This isn't Zeb, Shaggy.

- I thought he shrunk.

- No. It's a voodoo doll that looks like him.

- Then what happened to Zeb?

- I don't know, but I'll bet that witch had something to do with it.

- I'd like to know what she and that zombie are up to.

- Well, there's only one place to find the answer.

- Like, in the phone book, I hope.

- No, Shaggy. In the swamp.

- I had to ask.

- Look! It's the witch and her creepy crony.

- Come on. Let's follow them. Quietly, now.

- They're gone!

- Vanished!

- Yeah, but we're on the right trail. Look!

- Beware of the Witch. Go Back.

- Enter at Your Own Risk.

- Risk? Oh, boy.

[...]