He's trying to tell you he sold you the winning ticket.

2 seconds sound clip from the The Treasure of the Sierra Madre movie soundboard.

You can hear this line at 00:20:30.880 in the Blu-ray version of the movie.

Quote context

[...]

- Señor! Señor! Give me my money, señor! Ten percent I get for selling the winning ticket!

- Get away from me, will you?

- Aw, please, señor. Whoever draws the lucky number always gives a present to the seller of the ticket.

- I tell you, I don't want any lottery ticket!

- If you don't, you have bad luck rest of your life!

- What? Wait a minute. What did you first say?

- He's trying to tell you he sold you the winning ticket.

- Hey... hey, wait a minute. This what you mean?

- Si, señor.

- You say it's a winner?

- Si. A 200-peso prize.

- Where?

- Tres-siete-dos-uno.

- Hey! That's my number!

- Sure enough!

- Oh, just look at that fat, rich, printed number. That's the kind of sugar papa likes.

- Oh, 200 pesos. Welcome, sweet little smackaroos.

[...]