It's rather hard having a 'Welcome home, Piglet' party when there's no Piglet to welcome home.

9 seconds sound clip from The New Adventures of Winnie the Pooh - A Very, Very Large Animal / Fish Out of Water (S1E19).

You can hear this line at 00:09:58.200 in the Blu-ray version of the TV Series.

Quote context

[...]

- I know. Let's have a 'Welcome home, Piglet' party, and then he'll have to be home.

- You're not the size that is standard, Piglet. There's simply nothing you can do for anyone. You're just a tiny waste of space.

- Why, what's this? For me? Aw, you don't need to thank me for helping you. I only did it because you're all so very, very small and, and, uh...

- Why, you are very, very small, aren't you?

- Oh, boy. This isn't a very celebrationish celebration.

- It's rather hard having a 'Welcome home, Piglet' party when there's no Piglet to welcome home.

- If only we know where Piglet lived now. Then we could go there and welcome him home.

- But, Pooh, I live here. Heh heh heh.

- Piglet! Welcome home, Piglet! Oh, he's home! He's back!

- Hooray for Piglet.

- But what changed your mind, Piglet? I mean, you haven't really grown any, hmm?

[...]