《元史·列传·卷九十四》
三月，诏令孛罗帖木儿移兵大同，设立大都督兵农司，专门督促屯兵种粮之事，由孛罗帖木儿管领。
三月，诏孛罗帖木儿移兵至大同，置大都督兵农司，专督屯种，以孛罗帖木儿领之。
In March, an imperial decree ordered Bo Luo Tie Mu'er to move his troops to Datong, and to establish the Office of the Commander-in-Chief of Military and Agricultural Affairs, which was specifically responsible for supervising the farming of the garrison troops, led by Bo Luo Tie Mu'er.