《礼记·曲礼上》
因此，结婚的年月日要向官方登记，还要斋戒禀告祖先，还要置办酒席邀请乡邻、同事、朋友，如此郑重其事，就是为了强调男女之别。
故日月以告君，齐戒以告鬼神，为酒食以召乡党僚友，以厚其别也。
Therefore, the date, month, and year of a wedding is registered with government officials, ancestors are informed after fasting, and a banquet is held for neighbors, colleagues, and friends. All of these formalities serve to emphasize the distinct roles of men and women.