《汉书·传·陈胜项籍传》
外黄人几天后才投降，项王命令所有十五岁以上的男子到城束，准备坑杀他们。
数日降，羽悉令男子年十五以上诣城东，欲坑之。
People in Waihuang surrendered several days later. King Xiang ordered all men over fifteen to gather outside the city, ready to bury them alive.