《明史·列传·卷一百八十七》
同他谈，只要稍涉及伦理，他立即用话岔开，如同疯癫玩世不恭之人。曾好戴铁帽，人称 铁冠子 。张三丰，名全一，一名君宝，号三丰，辽东懿州人，因不修边幅，又号张邋遢。
张三丰，辽东懿州人，名全一，一名君宝，三丰其号也。以其不饰边幅，又号张邋遢。
When talking to him, if the topic involved ethics, he immediately changed the subject. He acted as if he were a crazy and casual person. He used to like to wear an iron hat, so people called him Iron-crowned Old Man. Zhang Sanfeng was also called Quan Yi, Junbao, and Sanfeng. He was from Yizhou, Liaodong. Because he was casual about his clothes, he was also called Sloppy Zhang.