The Ninja was an ancient Chinese skill. It evolved in Japan into the Ninja Art.
10 seconds sound clip from the Five Elements Ninjas movie soundboard.
You can hear this line at 01:09:13 in the Blu-ray version of the movie.
Quote context
[...]
- This is big brother Li Ying Wu.
- That's second brother Chen Jun.
- And third brother, Huang Fat.
- Follow the sound of my rattan stick.
- Counter it with the sticks you are holding.
- The Ninja was an ancient Chinese skill. It evolved in Japan into the Ninja Art.
- Their five element formations are very elusive and powerful.
- Eight of our fighters were killed by the ninjas. Why is a ninja so deadly?
- They originated from Chinese townsmen and blossomed during the Era of the Three Kingdoms.
- During that era, Emperor Liu Xie used it to tease his opponent Cao Cao.
[...]