Battle of Ji (108) — the same event in Book of the Later Han and Zizhi Tongjian

Book of the Later Han: Grand General of Chariots and Cavalry Deng Zhi was defeated by Zhong Qiang west of Ji.; Zizhi Tongjian: In the first month…

What each source says

Book of the Later Han (Hou Hanshu), Annals · AD 108 · 冀

Grand General of Chariots and Cavalry Deng Zhi was defeated by Zhong Qiang west of Ji.

車騎大將軍鄧隲爲種羌所敗於兾西。
Location: 後漢書卷5 孝安帝紀 永初2年

Zizhi Tongjian (Comprehensive Mirror) · AD 108 · 漢陽

In the first month, Deng Zhi reached Hanyang, but before the army arrived he was defeated at Qiishu by thousands of Zong Qiang and lost a thousand men. Yang Gen defeated more than ten thousand Qiang at Zhangye and Gu Zhang and other places.

春,正月,鄧騭至漢陽;諸郡兵未至,鐘羌數千人擊敗騭軍於冀西,殺千餘人。
Location: 資治通鑑 卷049 (원문 단락 #3840, 108년)

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