《后汉书·本纪·孝灵帝纪》
三月，休屠各胡进攻杀害并州刺史张懿，并与南匈奴左部胡人相合，杀南匈奴单于。
三月，休屠各胡攻杀并州刺史张懿，遂与南匈奴左部胡合，杀其单于。
In March, the Xiongnu of Xiutu attacked and killed Zhang Yi, the Inspector of Bing Province, and joined forces with the southern Xiongnu of the Left to kill the Chanyu of the Southern Xiongnu.