《旧五代史·后周·太祖纪四》
到上年底，太祖病痛加重，郊庙祭祀的礼仪只是勉强施行而已。
洎岁暮，帝疾增剧，郊庙之礼盖勉而行之耳。
By the end of the previous year, Taizu’s illness had become more serious, and the protocol for performing the sacrificial rites at the imperial temples was only followed perfunctorily.