신라문무왕이 사후에 호국용이 되어서 아들 신문왕이 아버지를 위하여 지은 감은사로 왕래할 때 용화리의 용소에서 나와 감은사로 왕래하였다고 한다.
It is said that King Munmu of Silla was posthumously appointed as a patriot dragon, and when his son King Shinmun moved to Gamgeunsa Temple, which was built for his father, he came out of Yonghwa-ri's Yongso Pond and traveled to Gamgeunsa Temple.