He's saying when the sacred stone was taken, the village wells dried up, and the river turned to sand.
9 seconds sound clip from the Indiana Jones and the Temple of Doom movie soundboard.
You can hear this line at 00:25:39 in the Blu-ray version of the movie.
Quote context
[...]
- With three lines across it representing the three levels of the universe. Yes.
- I've seen stones like the one you lost.
- But why would Maharajah take the sacred stone from here?
- They says we must pray to their evil god. We says we will not.
- Excuse me, I don't understand how one rock could destroy a whole village.
- The crops were swallowed by the earth, and the animals laid down and turned to dust.
- Children. He says they stole their children.
- Sankara.
[...]