Battle of Gaoche (399) — the same event in History of the Northern Dynasties and Book of Wei
History of the Northern Dynasties: Three armies from three directions converged at once and routed more than thirty mixed Gaoche clans.; Book of Wei…
What each source says
Three armies from three directions converged at once and routed more than thirty mixed Gaoche clans.
二月丁亥朔，諸軍同會，破高車雜種三十餘部
Location: 北史 卷1 天興2年
He launched a surprise attack on the Gaoche along three routes, taking more than thirty tribes and over seventy thousand captives.
二月丁亥朔，諸軍同會，破高車雜種三十餘部，獲七萬餘口，馬三十餘萬匹，牛羊百四十餘萬。
Location: 魏書卷2·天興二年