《南齐书·列传·卷二十五》
张敬儿的大军来到白水，沈元琰听到城外鹤鸣，便疑为官军叫声，心里惧怕想逃走。
敬儿军至白水，元琰闻城外鹤唳，谓是叫声，心惧欲走。
When Zhang Jing’er’s great army reached Baishui, Shen Yuanyan heard the sound of cranes calling outside the city and, suspecting it to be the cries of imperial troops, was filled with fear and tried to flee.