《魏书·帝纪·卷七》
夏，四月四日，孝文帝下诏说： 在楼上向百姓发放救济物品，导致人马拥挤相互践踏，使很多人受伤，今后废止此法。
夏四月丁丑，诏曰： 升楼散物，以赍百姓，至使人马腾践，多有毁伤。
In the summer, on April 4th, Emperor Xiaowen issued an edict stating that: Distributing relief supplies from the tower had led to overcrowding and trampling injuries, and that this practice was to be abolished.