Certainly, Rabbit. Be glad to help you find him.
5 seconds sound clip from The New Adventures of Winnie the Pooh - Where Oh Where Has My Piglet Gone? / Up, Up and Awry (S2E7).
You can hear this line at 00:05:14.207 in the Blu-ray version of the TV Series.
Quote context
[...]
- But since I haven't found him, maybe Rabbit has. Rabbit? Rabbit!
- Oh, my! This is the spot! But I've lost the tree. And Rabbit, too!
- That Pooh Bear's been gone forever.
- I'd better get Gopher or someone to help me find him. And Piglet, and maybe even my hammer.
- I do hope Tigger could help me.
- Certainly, Rabbit. Be glad to help you find him.
- Yep! Pooh and Rabbit are lost, all right.
- Hmm, say, maybe Gopher's seen them.
[...]