《资治通鉴·唐纪·唐纪八十一》
李克用认为对，与将佐商量召请幽州军队一同攻打潞州，说： 对于他们可以解除包围，对于我们可以开拓疆域。 
克用以为然，与将佐谋召幽州兵与攻潞州，曰： 于彼可以解围，于我可以拓境。 
Li Keyong agreed, and discussed with his chief and staff to summon the Youzhou army to attack Luzhou together, saying: For them, they can lift the siege; for us, we can expand our territory.