Pooh wasn't at Eeyore's either. And neither was Eeyore. And no one was at Tigger's.
7 seconds sound clip from the Boo to You Too! Winnie the Pooh movie soundboard.
You can hear this line at 00:15:57.929 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, perhaps we'd better take off our costumes so as not to frighten him.
- Don't you know what this means? He's been pig-napped by spookables! Aaaaah!
- Hup, two, three, four. Hup...
- Pooh wasn't at Eeyore's either. And neither was Eeyore. And no one was at Tigger's.
- Oooh, no one at all is where they should be!
- Aaaaah! Ohh. Was that you, Eeyore?
- Wish I could say it was, but it wasn't.
[...]