《明史·志·卷三十二》
凡是属官拜见上司，洪武二十年制定礼仪，属官按品级站立在庭堂台阶的上面，总行一揖礼，上司拱手，首领官回报作揖。
凡属官见上司，洪武二十年定，属官序立于堂阶之上，总行一揖，上司拱手，首领官答揖。
Whenever officials met with their superiors, according to the etiquette established in the 20th year of the Hongwu era, the subordinate would stand on the steps of the courtyard according to their rank, and would bow once, the superior would bow with hands clasped, and the chief official would bow in return.