《资治通鉴·秦纪·秦纪一》
信陵君率军攻管城不下，便派人去见安陵君说： 如果您能遣送缩高到我这里来，我将授给他五大夫的军职，并让他担任执节尉。 
信陵君攻之不下，使人谓安陵君曰： 君其遣缩高，吾将仕之以五大夫，使为执节尉。 
Lord Xinling led the army to attack Gucheng but failed. Then he sent someone to see Lord Anling and said: If you can send Suo Gao here, I will give him the military rank of Wudafu and let him serve as a lieutenant with a staff.