《宋书·列传·卷八十八》
当年五月，萧道成等人驻扎平原。薛索儿等带领骑兵五千布阵抵抗。萧道成等奋击，大败薛索儿。
其年五月，军次平原，索兒等率马步五千，列陈距战，击大破之。
In May of that year, Xiao Daocheng and others stationed in Pingyuan. Xue So'er and others led 5,000 cavalry to deploy for resistance. Xiao Daocheng and others fought hard and defeated Xue So'er badly.