法苑珠林 32.37

32.37

During the Jianping era of the Han, in Yuzhang, there was a man who transformed into a woman; she married a man as his wife and bore a son. Chen Feng of Chang'an said, 'Yang changing into yin portends the loss of heirs. Bearing one son means it will last for one more generation and then be cut off.' Therefore, it caused Emperor Ai to collapse and Emperor Ping to perish, and Wang Mang usurped the throne.