《明史·列传·卷一百九十七》
自成将一百九十名书生割鼻断足，遂乘胜攻陷南阳、邓州等十四城，再围开封。
自成劓刖诸生百九十人。遂乘胜陷南阳、邓州十四城，再围开封。
ZiCheng cut the noses and broke the legs of 190 scholars. Then, he took advantage of the victory to capture 14 cities, including Nanyang and Dengzhou, and then besieged Kaifeng.