《宋史·本纪·卷三十五》
淳熙九年正月初三，诏令四季的第一个月举行祭祀，分别用三天，如在京惯例。
九年春正月甲戌，诏四孟朝献分用三日，如在京故事。
The third day of the first month in the ninth year of Chunxi, the imperial court ordered sacrifices to be held on the first month of each season for three days, according to the customs in the capital.