《徐霞客游记·粤西游日记三十六》
据《百粤风土志》，仙翁名字又叫禹臣，是唐代人，难道是他的名与字不同吗？
按《百粤风土志》，仙翁又名禹臣，唐时人，岂名与字之不同耶？
According to the "Hundred Yue Local Customs", the name of the Immortal Venerable is also Yuchen. He was from the Tang Dynasty. Could it be that his name and words are different?