《容斋随笔·卷十·礼寺失职》
唐朝开元年间，封孔子为文宣王，颜子为兖公，闵子到子夏这些孔门贤人为侯，众孔子弟子封为伯。
唐开元中，封孔子为文宣王，颜子为兖公，闵子至子夏为侯，群弟子为伯。
During the Kaiyuan era of the Tang Dynasty, Confucius was enfeoffed as Duke of Wenxuan, Yanzi as Duke of Yanzhou, Minzi to Zixia and other Confucian scholars were enfeoffed as marquises, and all of Confucius' disciples were enfeoffed as earls.