《元史·列传·卷四十一》
当夜二更，进率勇士七十人，乘其不备而攻之，破门而入者二十人。
夜将旦，进遂得其堡，守之，关路始通，诸军尽度。
At the second watch that night, Jin led seventy brave soldiers and, catching them off guard, attacked; twenty of them broke through the gate.