《明史·列传·卷二》
事后，方皇后命令内监张佐等人搜捕宫女一同治罪，招出杨金英等人想谋害皇上，王宁嫔为主谋。
后命内监张佐等捕宫人杂治，言金英等弑逆，王宁嫔首谋。
Afterwards, Empress Fang ordered eunuch Zhang Zuo and others to arrest the palace maids and punish them together. They confessed that Yang Jinyin and others wanted to assassinate the emperor, with Wang Ningpin as the mastermind.