《明史·列传·卷一百九十五》
皇上大治奸党时，逯杲绑住锦衣卫百户杨瑛，说他是张永的亲属，他还在朝廷上抓住刘勤，上奏说他诽谤皇上，结果这两人都被诛杀。
帝大治奸党，杲缚锦衣百户杨瑛，指为张永亲属，又执千户刘勤于朝，奏其讪上，两人并坐诛。
When the emperor eradicated the treacherous party, Lu Gao tied up Jinyiwei's Baihu Yang Ying, saying that he was Zhang Yong's relative. He also caught Liu Qin in the court and submitted a memorial saying that he slandered the emperor. As a result, both of them were executed.