- And when shall we be done running away, and ready to begin running back?
- There won't be any running back, Pooh bear. This is forever.

8 seconds sound clip from The New Adventures of Winnie the Pooh - Home Is Where the Home Is (S4E5).

You can hear this line at 00:16:36.020 in the Blu-ray version of the episode.

Quote context

[...]

- We have run away from home, Signed, Christopher Robin and Pooh. P.S. Send honey.

- Run away from home? That's terri-bib-le.

- Yes, especially in weather such as this.

- We've got to find them.

- Where could they have gone?

- Why, I bet they're headed for the very ends of the earth, and with this much headstart, they're probably halfway there by now.

- Have we run away yet, Christopher Robin?

- Not yet, Pooh. We still have a long way to go.

- And when shall we be done running away, and ready to begin running back?

- There won't be any running back, Pooh bear. This is forever.

- Isn't forever a rather long time, Christopher Robin?

- Yes, Pooh.

- Well, then, perhaps there's time to stop for a small smackerel?

- Yes, I guess we could rest for a little while.

- Oh, bother. It's empty.

- Uh-huh. Could be a clue. Can't be too far ahead, the honey's still warm. Not even a day old.

[...]