The official's name was Zeng Bingzheng. He sold his four-year-old daughter because he had no money to return home. After Zhu Yuanzhang learned about this, he ordered someone to castrate him. Zeng Bingzheng was originally a seventh-rank sesame official. Because of his outstanding political achievements during his tenure as Haizhou Xuezheng, he was recommended to Zhu Yuanzhang by his immediate superior. Zhu Yuanzhang saw that he had an upright character and was fair in his actions, so he appointed him as a public speaker to complain about injustices and illegal things. And Zeng Bingzheng is indeed very suitable for this job. Even if the criminal is a high-ranking official, he dares to directly admonish him. He even criticized Zhu Yuanzhang.

Although Zhu Yuanzhang was indeed attracted by Zeng Bingzheng's character traits of not fearing power and daring to speak out directly at first, but as time went by, he felt that this person was too inflexible. Not to mention that Zeng Bingzheng had repeatedly criticized Zhu Yuanzhang in front of all civil and military officials. Other officials also had opinions on Zeng Bingzheng's way of serving as an official. Due to the king's displeasure and the successive reports from many officials, Zhu Yuanzhang finally decided to dismiss Zeng Bingzheng from his post and asked him to return to his hometown immediately.

After Zeng Bingzheng was dismissed from his post, he could only return home as soon as possible according to the king's request. However, because he was an honest official and the distance from his hometown was far away, he simply could not afford enough money to return home. But he couldn't go against the king's will because of this matter, so he had to find ways to raise money. The last way he came up with was to sell his four-year-old daughter. As a result, the matter was informed to Zhu Yuanzhang not long after. Zhu Yuanzhang was very angry when he learned about it, so he ordered the palace to perform the castration of Zeng Bingzheng.

The reason why Zhu Yuanzhang reacted so strongly to Zeng Bingzheng's selling of women to raise money was because he felt that this behavior was extremely disrespectful to women. You must know that Zhu Yuanzhang had set a rule of "no marriage" after he ascended the throne. It can be seen from this rule that he values ??women more, so he was so angry after learning about Zeng Bingzheng's behavior.