《资治通鉴·唐纪·唐纪六十八》
十一月，庚寅，冬至，满朝大臣给唐僖宗上尊号，称圣神聪睿仁哲孝皇帝；改年号为乾符。
十一月，庚寅，日南至，群臣上尊号曰圣神聪睿仁哲孝皇帝。改元。
On the Gengyin day of the eleventh month, the winter solstice, court officials congratulated Tang Xizong and gave him the title Emperior Shengshen Congrui Renze Xiaohuangdi, and changed the era name to Qianfu.