《明史·志·卷四十三》
凡是皇帝亲自祭祀天地和祖先、土神谷神，文武官员向配祭者行敬酒献帛礼，陪从祭祀，就穿祭服。
凡亲祀郊庙、社稷，文武官分献陪祀，则服祭服。
Whenever the emperor personally sacrifices to the heavens and earth, or to ancestors, the gods of the soil and the gods of the valleys, and during the libation and presentation of cloth to the participants by the civil and military officials, those attending also wear sacrificial attire.