《元史·本纪·卷一》
然而，几万士兵千里迢迢前去增援，人马必然疲劳困惫，即使到了也无法作战，我军就一定能击败他们了。 
然以数万之众，千里赴援，人马疲弊，虽至弗能战，破之必矣。 
However, hundreds of thousands of soldiers trekking a thousand miles to reinforce will definitely be exhausted and weakened, and even if they arrive they will not be able to fight, so our army will definitely be able to defeat them.