Oh, bother. I must have pumped the pump too hard. Perhaps it's gone off to take a nap.

7 seconds sound clip from The New Adventures of Winnie the Pooh - What's the Score, Pooh? / Tigger's Houseguest (S3E3).

You can hear this line at 00:11:38.416 in the Blu-ray version of the TV Series.

Quote context

[...]

- What'll we use for a ball?

- Ah, don't worry. We'll find something.

- Hiya, buddy bear!

- How about some fun and frolics and stuff?

- I can't now. I'm cleaning my empty honey pots, before I fill them again, so I can empty them again.

- I'll bet Pigalet can play. He's always got time for a friend.

- Oh, bother. I must have pumped the pump too hard. Perhaps it's gone off to take a nap.

- Let me see. A carrot caddy for Rabbit, a honey pot warmer for Pooh Bear...

- Hiya, little Pigalet!

- Yipes!

- What say you and me go hunting heffalumps or something?

- I can't now. I'm making up my Christmas list.

- But it's only half past springtime.

[...]