《明史·列传·卷一百九十三》
皇上说： 近年来一些无耻臣僚，尽将珠宝买来献给张、冯两家，使珠宝价钱骤然上涨。 
帝曰： 年来无耻臣僚，尽货以献张、冯二家，其价骤贵。 
The emperor said, “In recent years, some shameless ministers have bought up all the jewels and presented them to Zhang and Feng’s families, causing jewel prices to skyrocket.”