《资治通鉴·梁纪·梁纪四》
那些瘦弱年老和年少的人，稍微懂一些冶炼技艺以及木工手艺的，都被从营垒中搜寻出来，让他们遭受百般的苦役。
其羸弱老小之辈，微解金铁之工，少闲草木之作，无不搜营穷垒，苦役百端。
Old, weak, and young people who knew a little about metallurgy and carpentry were sought out and sent to the camps to do all kinds of hard labor.