What is the so-called "injury" that Xuanwu Suzaku hurts his grandson?

Regan: It refers to the diviner himself. Whoever divines will harm him.

Xuanwu refers to private thieves, and hiding money refers to fraud. This means that people will be stolen or cheated of their money.

Suzaku refers to the tongue. Having wealth refers to the relationship with the tongue. This means that there will be an argument about money.