《元史·本纪·卷十七》
五月初一，赐给中书省四部轮番值宿的卫士一万匹马，又给其必赤官四百匹。
五月丙辰朔，给四部更番卫士马万匹，又给其必阇赤四百匹。
On the first day of the fifth lunar month, ten thousand horses were given to the guards who took turns on duty in the four departments of the Central Secretariat, and another four hundred horses were given to the officers of the Bichao Office.