Da Yun Guo Shi Volume 20:
"Hua Buyu, whose name is Yinan. Her origin is unknown. She rescued the prince in the suburbs of Beijing in the spring of the 30th year of Da Yun. Her appearance is very similar to the late Queen Wenyi, and the emperor was very happy to see her. She was quite talented, and understood the ancient sage teachings, so he was ordered to be the prince's tutor. There was a shortage of talents in the dynasty, and he was promoted three times in two years, with ten thousand gold rewards and the post of prime minister. He was treacherous and insidious. He was corrupt and the people complained a lot. In the 31st year of Dayun, he went to Gui Qi as an envoy to promote the good relationship between Gui Qi and Fengye. In the name of Linling's violent behavior, he promoted the Three Kingdoms' attack on Linling. Later, in the autumn of Dayun's 33rd year, he disappeared during the war between the Three Kingdoms and Linling.