《资治通鉴·齐纪·齐纪七》
萧衍要出战，崔慧景不同意，说： 北魏军队从来不在夜间围城攻打，所以等天黑之后他们自然就会撤崐走的。 
衍欲出战，慧景曰： 虏不夜围人城，待日暮自当去。 
Xiao Yan wanted to lead an attack but Cui Huijing did not agree. He said, "The Northern Wei always withdraws at night and won't surround the city to attack, so once it gets dark, they will naturally retreat."