What events have been described in history about "Wu Daozi recruiting people to assassinate his colleagues"?

Wu Daozi, the word Xuan, was a famous painter in the prosperous Tang Dynasty. The Tang Dynasty was known as the "sage of painting". Deeply appreciated by Xuanzong, he summoned people to the imperial court and awarded him a doctor of internal education. Unless there is a imperial edict, he is not allowed to paint for others casually and became a royal painter. At first, I studied calligraphy with Zhang Xu and He, and later I studied painting. Its skillful technology and high achievements are "unique in ancient and modern times." He made great contributions to the development of China's painting.

However, even this painter did something disgraceful before his death. According to Duan Youyang Miscellaneous Continuation, Volume 6, Story of Temple Tower, there are murals painted by famous painters in the Tang Dynasty in Jingyu Temple in Xuancheng Square. Among them, there are ghosts and sculptures painted by Huangfu in the south wall of the West Gallery Wanshou Bodhisattva Hospital, such as falling into the wall. Huangfu and Wu Daozi were at the same time, and Wu was afraid that Huangfu's skills would overwhelm him, so he paid a killer to kill Huangfu. On the one hand, it shows the fierce competition among painters at that time, and it also shows that Wu Daozi is narrow-minded and overbearing.

For this bloody case, two painting monographs in the Tang Dynasty, namely Zhang Yanyuan's Record of Famous Paintings in Past Dynasties and Zhu's Record of Famous Paintings in the Tang Dynasty, were concealed, and even the name of Huangfu was erased. The earliest record of this incident is the Notes on Youyang Miscellaneous Temple Tower in the Tang Dynasty (about 803 ~ 863): "Yang Xuanguang is the scene of Yang Temple, the Queen's House of Ben Taimu. Temple monk cloud: Outside the gate of the third-order courtyard, Emperor Shen Yao shot peacocks (that is, two peacocks painted on the screen of Tang Gaozu Li Yuan competed with archers from all walks of life, and the winner got Dou Yi's daughter as his wife, and Li Yuan got his wish. Dou Shi was the original wife of Tang gaozu, and was later named the Empress Dowager. "Wandering Eyes" inside and outside the temple gate says: Draw a king. Menxili noodles and Wang Xiujilong have spirits. On the west side of the gate, the fire eye fork and the North King are very powerful. There are sages and wild fork tribes in the east of the gate. A snake is coiled around the ghost's head, so you can be afraid of sweat and smoke. The East Gallery is full of trees and stones. On the south wall of the courtyard gate of the West Gallery Wanshou Bodhisattva, Huangfu painted ghosts and gods and sculptures, and the situation will be difficult. At the same time, Wu Daozi, Wu forced himself to raise others to kill him. "