《世说新语·捷悟》
他派人速去问主簿杨德祖，杨德祖随即答复了来人，结果和曹操想的一样。
驰使问主簿杨德祖。应声答之，与帝心同。
He immediately sent someone to ask the chief registrar Yang Dezu, and Yang Dezu immediately replied to the messenger, with an idea that was exactly the same as what Cao Cao was thinking.