Zheng Xuan
The postface to the "Kongzi Jiayu" asserts that it was compiled by Kong Anguo, an influential scholar and descendant of Confucius who lived in the 2nd century BC, from actual recordings of Confucius' sayings made by his disciples. Soon after Wang Su, who was a critic of the scholar Zheng Xuan, published his version of the "Jiayu", Ma Zhao (馬昭), a follower of Zheng, declared that it had been "amended and enlarged" by Wang.