Du Fu's "Song of Xu Qing's Second Son" says:
Don't you see, Xu Qing's two sons have extraordinary births, and they are following each other due to their auspicious dreams.
Confucius and Shi Shi gave him a hug, and he was a unicorn in the sky. The eldest son is nine years old and has a clear complexion.
Autumn water is the divine jade and the bones are. The five-year-old child was so angry that he ate the cow, and all the guests in the hall turned around.
Xu Lingyuan, the eldest daughter of Bo'an Hou, is gentle and knowledgeable. She has just been engaged to Ying Chao, the eldest son of the Taifu, but the husband is frequently involved in scandals with the new oiran. The younger daughter Xu Ling'an was angry that her sister was being bullied, so she broke off the engagement with the scumbag man and vowed to help her sister find a good husband.