《隋书·列传·卷四十三》
胄玄认为，增加时间的先后，随节气而不同，笼统地按月推断，在道理上说不通。
胄玄以为加时先后，逐气参差，就月为断，于理未可。
Zhong Xuan believed that the succession of added times varies according to the solar term and that making an arbitrary calculation according to the month is illogical.