And now, I present the world's smallest little elephant, who will spring from this springboard, in one spring, to the top of this pyramid, waving his little flag for a grand climax.

20 seconds sound clip from the Dumbo (1941) movie soundboard.

You can hear this line at 00:31:19 in the Blu-ray version of the movie.

Quote context

[...]

- That's it. Attaboy. That's the stuff. Come on.

- Oh, oh, oh, oh, oh! Oh, Dumbo! Oh, those ears. We got to do something, quick.

- Ladies and gentlemen, you have now seen the impossible accomplished in front of your faces.

- Seven jungle giants, each one weighing...

- That windbag. Why doesn't he come to the point?

- And now, I present the world's smallest little elephant, who will spring from this springboard, in one spring, to the top of this pyramid, waving his little flag for a grand climax.

- Ladies and gentlemen, I give you... Dumbo.

- Go on! Get going.

- What's the matter with you? Dumbo, that's your cue. You're on, Dumbo.

(drum roll)

[...]