《明史·志·卷六十八》
民户十五丁以下养马一匹，十六丁以上养马二匹，因罪编户发配的七户养马一匹，得以免罪。
民十五丁以下一匹，十六丁以上二匹，为事编发者七户一匹，得除罪。
Households with 15 or fewer people were required to raise one horse, and households with 16 or more people were required to raise two horses. Households with seven people who had been convicted of a crime and sent into exile were required to raise one horse, and this would result in their pardon.