《明史·列传·卷八十九》
当时宦官在浙江的共四个人，王堂当镇守，晁进管织造，崔王缶管市舶，张玉管建筑。
时中官在浙者凡四人，王堂为镇守，晁进督织造，崔泬主市舶，张玉管营造。
At that time, there were four castrated men in Zhejiang, with Wang Tang in charge of guarding, Chao Jin in charge of silk production, Cui Wangfu in charge of shipping, and Zhang Yu in charge of construction.