《明史·志·卷六十八》
正统初年，下令被勾征为军的家庭而没有丁口的，免除军籍；逃避军役死亡以及因事死亡的，或家人本已编入军籍，而偶有同姓名，里长心怀私仇乱报假冒解送，或已经解送而奔赴部裹伸冤的，都予以免除。
正统初，令勾军家丁尽者，除籍；逃军死亡及事故者，或家本军籍，而偶同姓名，里胥挟雠妄报冒解，或已解而赴部声冤者，皆与豁免。
In the early years of the Zhengtong era, an edict was issued exempting families who had been called to serve in the army but had no male children from military service. Those who had died while evading military service or as a result of an incident, or whose family members had already been drafted into the army and were occasionally reported missing under false pretenses out of personal grudges by the village chief, or who had been forcibly taken and then appealed to the ministry of war for redress, were all exempted.