Is the grandson of Dr. Xu from imperial academy. He was recommended as Mingjing by the bedsheet, and the tired official was transferred to Zhou Pu Judicial Army. He was named as Dongguan Male Company. Handling prison proceedings is lenient and kind to people, and there is no torture to extract confessions. Officials and people are very grateful for his kindness and loyalty to the people. They agreed to say, "If anyone violates Xu's rod punishment, we will reprimand and punish him." Therefore, everyone is scrambling to obey his orders. During his whole term of office, he didn't kill a prisoner. In the first year of the first year, hard work was promoted to punishment. At that time, cruel officials Zhou Xing, Lai Junchen, Qiu He and Wang fabricated charges and framed the innocent. All those who were framed should be executed. The princes and ministers were so afraid that no one dared to speak for them. Only Xu Yougong holds a lenient view towards them. He reconsidered all the imperial edicts to Dali Temple and released them one by one. Back and forth saved dozens of families, hundreds of families. Xu Yougong often argued in court about who was right and who was wrong. Wu Zetian questioned him with stern eyes. The people around him were not afraid, but Xu Yougong kept a straight face and argued that things were more urgent. Soon, Xu Yougong was transferred to Qiu Guan as foreign minister and later became a doctor.
Soon, seven people, including Ren Zhigu, assistant minister of Fengge, and Pei Xingben, the winter official, were framed and should be sentenced to death. Wu Zetian said to the ministers: "The ancients stopped the murder by killing people. Now I stop the murder by kindness. I especially ask you to forgive the sins of Ren Zhigu and others, give them a chance to live, give them official positions and observe their repentance effect. " Lai Junchen, Zhang Zhimo and others resisted the will of Wu Zetian and demanded that they be brought to justice. Wu Zetian refused, and Lai Junchen took out the case file of Pei Xingben alone, re-verified the previous crimes, and wrote: "Pei Xingben secretly did something that violated the national law, suing Zhang Zhijian and Lu for rebellion, which is unrealistic and should be beheaded." Xu Yougong refuted his throne and said, "Lai Junchen opposed the gift of a wise monarch, revived guilty ministers, and weakened the sage's strategy of governing the country by virtue. Although I should be jealous of evil, those who serve the monarch must give priority to their good wishes. " Pei Hangben was finally spared the death penalty.
Li Renbao, the secretariat of Daozhou, and Li Changsha, the magistrate of Yuci County, his younger brother were framed by Tang Feng again. Tang Gaozong talked privately about the good and bad news of the Lee brothers after handling government affairs in North Korea, and planned to interrogate the Lee brothers and kill them. Xu Yougong resolutely defended them, but it was useless. Zhou Xing, assistant minister of Qiu Guan, played Xu Yougong and said, "I heard that the precedent of the Han Dynasty was that those who lied to the emperor were beheaded, and those who lied to the emperor were beheaded." Li also said: Explain to the guilty that those who break the law will be killed. Xu Yougong deliberately released the rebellious prisoner, and his crime was unforgivable. Ask the emperor to review his crimes. "Although Wu Zetian didn't promise to detain and interrogate Xu Yougong, she was relieved of her official position. After a long time, the court restored Xu Yougong according to Zuo Tai's suggestion, and Wu Zetian specially praised him for being different from other ministers. At that time, people from far and near were happy to celebrate each other when they heard that Xu Yougong was re-awarded the official position.