《资治通鉴·陈纪·陈纪四》
庚戌，北周国主到太庙祭祀行礼；庚申，去醴泉宫。
庚戌，周主享太庙；庚申，如醴泉宫。
Gengxu, the state master of Northern Zhou went to the Imperial Temple to offer sacrifices and perform rituals; Gengshen, he went to Liziquan Palace.