《史记·八书·封禅书》
秦以冬季十月为每年的开头，所以常以十月斋戒后郊祀天帝，由祭的地方以权火直达宫禁，皇帝拜于咸阳宫旁，衣服崇尚白色，其他用具与通常祭祀相同。
秦以冬十月为岁首，故常以十月上宿郊见，通权火，拜於咸阳之旁，而衣上白，其用如经祠云。
Qin took October in winter as the beginning of each year, so the winter solstice was often used to sacrifice to the emperor of heaven after fasting, and the place of sacrifice was directly connected to the palace gate by fire. The emperor worshipped beside the Xianyang Palace, wearing white clothes and other utensils the same as the usual sacrifices.