You must release the little creature.
4 seconds sound clip from The Yogi Bear Show - Foxy Hound-Dog (1958) - S01E05 TV Series.
You can hear this line at 00:06:47 in the Blu-ray version of the movie.
Quote context
[...]
- That hound dog thought you was a baby.
- You take a peek at the TV, little fox, while old Yogi fetches you a bottle of milk.
- Good show. Cheerio! Pip-pip! Tallyho! And all that sort of rot, what.
- Ah, but we can't keep the bounder. Fox hunting is out of season. Dash it all.
- You must release the little creature.
- Must play the game according to the rules, you know.
- Oh, come now. Dash it all. Chin up. Stiff upper lip and all that.
- How about that? Ye big hunter on a baby bunny.
[...]