We can't, Tigger. We're going to wish on Christopher Robin's wishing star.
4 seconds sound clip from The New Adventures of Winnie the Pooh - The Wishing Bear (S1E16).
You can hear this line at 00:05:42.400 in the Blu-ray version of the TV Series.
Quote context
[...]
- I always win. Boy, this sure is boring. If only there was two of me. Then things would be fun.
- Hmm. Let me see. Walk like a turtle, uh, dance like a worm... No, not that, either.
- You guys want to play? Huh? Huh?
- We can't, Tigger. We're going to wish on Christopher Robin's wishing star.
- Wait a minute. A wishing star! I could wish for another tigger to play with.
- Oh, Pooh, can I wish, too? Can I? Can I?
- Well, you see, I can't quite remember...
- I can hardly wait. A friend. A companion. Someone to compare stripes with. Hoo hoo hoo hoo hoo!
[...]