What ancient book did the words of the parents' life matchmaker come from?

This sentence comes from the section of Mencius Teng Wengong. The original text is "If you don't wait for your parents' orders, you can get a glimpse of what the matchmaker said, and let them cross the wall, then your parents are mean." "It means that children's marriage should be decided by their parents, through the introduction of the matchmaker, not in private. This is an ancient traditional concept in China, which holds that marriage is not only a matter for two people, but also an important event for the family and society, which needs the recognition and support of parents and society.