《资治通鉴·隋纪·隋纪四》
杨素责问迟缓的原因，军司以实回答了，杨素马上把留下守营的三百人召出军营，全部斩首。他再次命令挑选留守人员，人们都不愿意留下。
素责所由，军司具对，素即召所留三百人出营，悉斩之；更令简留，人皆无愿留者。
Yang Su asked the reason for the delay, and the military envoy answered truthfully. Yang Su immediately called out the 300 people who were left to guard the camp and beheaded them all. He ordered the selection of guards again, and no one was willing to stay.