《明史·志·卷二十九》
立春日举行进春礼，京城府县举着春案从东阶升登，跪着放置在丹陛中道，俯身伏地，起身。
立春日进春，都城府县举春案由东阶升，跪置于丹陛中道，俯伏，兴。
On Lichun, the ceremony of celebrating spring is held, and the prefectural and county governments of Beijing carry the spring case and ascend the eastern steps, kneel and place it on the middle path of Danbi, bow and kneel down, then get up.