《资治通鉴·魏纪·魏纪九》
诏令以关内侯王祥为三老，郑小同为五更，魏帝率领群臣到太学去，行养老乞求善言的礼仪。
诏以关内侯王祥为三老，郑小同为五更，帝率群臣幸太学，行养老乞言之礼。
Emperor Cao Rui ordered named Marquess of Guan Nei Wang Xiang as the Three Elders, and Zheng Xiaotong as the Five Ministers. Emperor Cao Rui led his ministers to Tai Xue to perform the ritual of respecting the elderly and seeking good words.