《资治通鉴·魏纪·魏纪二》
票骑将军都阳侯曹洪，家中富有，但很吝啬。文帝做太子时，曾向曹洪借用一百匹娟，未能满意，所以心怀忌恨。
票骑将军都阳侯曹洪，家富而性吝啬，帝在东宫，尝从洪贷绢百匹，不称意，恨之。
Lieutenant General Cao Hong of Duyang, was wealthy but stingy. When Emperor Wen was crown prince, he once borrowed 100 bolts of silk from Cao Hong, but was not satisfied, so he bore grudges.