Biography of Immortals says: "Peng Zu, also known as Doctor Yin, was named Geng Ming, the grandson of Emperor Zhuan Xu and the son of Lv Zhong. He lived for more than 800 years from the summer to the end of Yin. He often eats Gui Zhi and is good at guiding qi. There is Peng Zuxian's room in Liyang. Please beg for rain and wind in your last life, and you must respond. There are always two tigers around the temple, and there are tigers on the ground after the temple is finished. After that, I went to the immortal. "
Zhuangzi described Peng Zu's longevity in this way: "Take a breath, get rid of the old and get new, and the bear will live long." . This person who pursues and leads, this person who raises shape, is also Peng Zushou's favorite. "