佛祖統紀 35.127

35.127

二年。上幸辟雍（太學也）。尊養三老五更（鄭康成云。老人更知三德五事者。李奇云。王者父事三老。兄事五更。音庚）。引桓榮及弟子升堂。上自為說。諸儒執經問難。冠帶搢紳之人圜橋門而觀聽者蓋億萬計（搢音晉插笏也）。

In the second year, the Emperor visited the Biyong (the Imperial Academy). He honoured and sustained the Three Elders and the Five Experienced Men (Zheng Kangcheng says, 'Old men who have experienced and know the three virtues and the five affairs.' Li Qi says, 'The king treats the Three Elders as fathers, and the Five Experienced Men as elder brothers.' The pronunciation is *gēng*). He led Huan Rong and his disciples up to the hall, and the Emperor personally expounded the texts. The various scholars held the classics and presented questions and objections. Those wearing caps, sashes, and official regalia who encircled the bridge gates to watch and listen numbered in the hundreds of millions ('Jin' [搢] is pronounced *jìn*, meaning to insert an official tablet into the sash).