《旧唐书·本纪·卷二十》
十二月初七，决定：正议大夫、门下侍郎、兼任户部尚书、同平章事、太微宫使、弘文馆大学士、延资库使，充任诸道盐铁使、转运使、上柱国、河东县开国男、食邑三百户柳璨任光禄大夫、暂署司空，兼任门下侍郎、同平章事、太微宫使、弘文馆大学士、延资库使，充任诸道盐铁使、转运使，晋封为河东县开国伯，连原先的食邑，共七百户，充任魏国册礼使。
辛卯，制：正议大夫、门下侍郎，兼户部尚书、同平章事、太微宫使、弘文馆大学士、延资库使，充诸道盐铁转运等使、上柱国、河东县开国男、食邑三百户柳璨可光禄大夫、守司空，兼门下侍郎、同平章事、太微宫使、弘文馆大学士、延资库使，充诸道盐铁转运等使，进封河东县开国伯，通前食邑七百户，充魏国册礼使。
December 7th, it was decreed that the Right Attendant for discussions, Attendant of the province’s chamberlain, concurrently Minister of the Ministry of Revenue, concurrently Minister in charge of the imperial court, Minister in charge of the Ta微 palace, University scholar in the Ministry of literary and cultural affairs, and Minister in charge of the Yanzi repository, member of the salt, iron, and transportation commissioners of all provinces, General of the upper pillar, Duke of Hedong, Lord of three hundred households, Liu Can, be appointed Grand master of ceremonies, temporarily acting as Minister of Works, concurrently Attendant of the province’s chamberlain, Minister in charge of the imperial court, Minister in charge of the Ta微 palace, University scholar in the Ministry of literary and cultural affairs, Minister in charge of the Yanzi repository, member of the salt, iron, and transportation commissioners of all provinces, and promoted to the rank of Count of Hedong, with a total of seven hundred households, and appointed Envoy of the Wei state investiture ceremony.