《宋史·本纪·卷一》
太祖拉住马疆绳对将领们说： 我的号令，你们能够听从吗了众将下马答道： 一定听从命令。 
太祖揽辔谓诸将曰： 我有号令，尔能从乎？ 皆下马曰： 唯命。 
Taizu grabbed the horse's reins and said to the generals: My orders, can you obey them? The generals got off their horses and answered: We will definitely obey the order. 