You found the fifth Golden Ticket.
4 seconds sound clip from the Willy Wonka & the Chocolate Factory movie soundboard.
You can hear this line at 00:35:30 in the Blu-ray version of the movie.
Quote context
[...]
- Hey, you've got it! You've got the last Golden Ticket! The kid's found the last Golden Ticket!
- Stand back there. Leave the boy alone! You'll kill him! Leave him alone! Break it up.
- Come on, Charlie! Hold on to that ticket!
- Run for it, Charlie! Run straight home, and don't stop 'til you get there!
- I congratulate you, little boy. Well done.
- You found the fifth Golden Ticket.
- Arthur Slugworth. President of Slugworth Chocolates, Incorporated.
- Now listen carefully because I'm going to make you very rich indeed.
- Mr. Wonka is at this moment working on a fantastic invention: The Everlasting Gobstopper.
- If he succeeds, he'll ruin me.
[...]