《论衡·卷二十五·诘术篇》
住宅的方位与五音有关，宅主的姓氏与五音也有关。住宅方位与主人的姓氏不适宜，姓氏与住宅方位相伤害，那么宅主就会疾病死亡，犯罪遇祸。 
宅不宜其姓，姓与宅相贼，则疾病死亡，犯罪遇祸。 
The orientation of the dwelling is related to the five notes, and the owner's surname is also related to the five notes. If the orientation of the dwelling is not suitable for the owner's surname, the surname conflicts with the orientation of the dwelling, then the owner will die from illness, and crime will lead to disaster.