How can Tianmen Pass find Xu Zhihu when he washes the elephant in Hong?

ride a crane down the south of the Yangtze river.

Hongxi Elephant is the oldest strong man in Wudang Mountain, because he is the reincarnation of Lu Dongxuan, the originator of Wudang Mountain. After an epiphany, he reached the celestial realm and began to ride a crane down the south of the Yangtze River to see Xu Zhihu.

The Hongxi Elephant in the south of the Yangtze River chose to liberate himself, which made Xu Zhihu soar, and he himself was reincarnated and rebuilt for 3 years.