Go pick up that stone... No, the big one.
10 seconds sound clip from the Come Drink with Me (1966) movie soundboard.
You can hear this line at 01:07:37 in the Blu-ray version of the movie.
Quote context
[...]
- Since you came back, you have been training like this.
- I know, something is bothering you.
- You have already helped me so much. You should go now. I'll finish this, all on my own.
- Go pick up that stone... No, the big one.
- Now take this stone, and throw it at my head. Come on, throw it at me.
[...]