He must have taken him back to his village, so if we find the village, we find him, and if we find him, we find Kuzco.
7 seconds sound clip from the The Emperor's New Groove movie soundboard.
You can hear this line at 00:54:48 in the Blu-ray version of the movie.
Quote context
[...]
- Who you kidding, pal? They saw the whole thing, they know what happened.
- The peasant at the diner! He didn't pay his check.
- Oh, yeah, it's all comin' together.
- Yzma!
- Aah!
[...]