Cui Wenzhi learns the path to immortality from Prince Qiao, leading to a surprising transformation.
Cui Wenzhi was a person from Mount Tai. He followed Prince Qiao to learn the Dao of immortality. Prince Qiao transformed into White Niyi and gave Cui Wenzhi some elixirs. Cui Wenzhi was surprised and threw his spear at White Niyi, hitting it and causing the elixirs to fall down. He bent down to examine them and found that they were Prince Qiao’s shoes. He placed the shoes in his house and covered them with a broken basket. After a while, the shoes transformed into a large bird. When he opened the basket to look at it, the bird spread its wings and flew away.
《崔文子学仙》
崔文子者，泰山人也。学仙于王子乔。子乔化为白霓，而持药与文子。文子惊怪，引戈击霓，中之，因堕其药。俯而视之，王子乔之履也。置之室中，覆以敝筐。须臾，化为大鸟。开而视之，翻然飞去。