《资治通鉴·宋纪·宋纪十三》
刘认为这样很对，于是留下老弱残兵留守军营，选精兵一千人配备给吕安国和龙骧将军黄回，令他们从小路绕到刘顺的背后，在横塘袭击他们。
勔以为然，以疲弱守营，简精兵千人配安国及龙骧将军黄回，使从间道出顺后，于横塘抄之。
Liu agreed that this was the right thing to do, so he left the old, weak, and wounded soldiers to guard the camp and selected 1,000 elite soldiers to be assigned to Lü Anguo and General Long Xiang, Huang Hui, ordering them to take the small road to the rear of Liu Shun and attack them at Hengtang.