《明史·列传·卷二百一十七》
或者即使不马上征讨他们，亦应当像古代帝王所做的那样封闭玉门关，拒绝他们的献贡使臣进入国内，这也还不失大体。可是现在皇上既宠幸他们的使臣，对他们待以厚礼，还派宦官为使者伴送他们回去，这是什么道理啊？
事闻，进秩加赏。先是，罕慎遣使来贡，未还而遘难，其弟奄克孛剌率部众逃之边方，朝命以赐罕慎者还赐其弟。
Even if we do not immediately attack them, we should, like the ancient emperors did, close the Yumen Pass and reject their tribute envoys from entering our country. This would still be reasonable. But now the emperor is spoiling their envoys, showing great goodwill toward them, and sending eunuchs as envoys to escort them back. What is the reasoning behind this?