《宋史·列传·卷二百三十五》
李全的军队想攻打邳州，邳州四面环水，李二措集中强弩防备李全攻城，李全不能进兵，就率军要求金兵出来交战。
全兵欲攻邳，四面阻水，二措积劲弩备之，全不得进，合兵索战。
Li Quan’s army wanted to attack Pizhou, since Pizhou was surrounded by water on all four sides, Li Erzuo mobilised strong crossbows to guard against Li Quan’s attack on the city, Li Quan, unable to advance, led his troops to demand that the Jurchen army come out and fight.