The two kung fu masters in China are Dugu Wu Di of the Invincible Clan, and Yun Fei Yang of Wudang.
7 seconds sound clip from the Return of the Bastard Swordsman movie soundboard.
You can hear this line at 00:02:08.295 in the DVD version of the movie.
Quote context
[...]
- Up in the sky, like the sun at high noon!
- Starting today, I go into isolation to practice.
- I shall challenge Wudang's Silkworm Skill in two years.
- In my absence, the eight division leaders will take over.
- Yes!
- Yes!
- The two kung fu masters in China are Dugu Wu Di of the Invincible Clan, and Yun Fei Yang of Wudang.
- Dugu's Fatal Skill is sinister and ruthless He has been invincible.
- Who is the better of the two?
- It seems like Fatal Skill has repeatedly been defeated by Silkworm Skill.
[...]