From Liu Xiang's Han-dynasty 《列女传·齐田稷母传》: 田稷's mother tells her son 不义之财，非吾有也，不孝之子，非吾子也 - 'wealth that isn't just isn't mine; a son who isn't filial isn't my son'. One of the earliest canonical rejections of dirty money in Chinese literature.
grammar
An N1+之+N2 nominal phrase ('wealth of injustice'). Common collocates: 拿, 收, 贪, 拒绝, 发家 - verbs of taking, refusing, or building on.
