《晋书·志·第十章》
从前于思在祖庙为被父亲休弃的生母悲哭，他的门人说： 别人家的女人死了，为什么在孔氏的庙裹哭呢? 
昔子思哭出母于庙，其门人曰： 庶氏之女死，何为哭于孔氏之庙！ 
Before Yu Si cried in the ancestral temple for the biological mother who was dismissed by his father, his disciple said: The woman in someone else's family died, why did you cry in the temple of Confucius?