Battle of Yinshan (630) — the same event in Old Book of Tang, New Book of Tang and Zizhi Tongjian
Old Book of Tang: Li Jing crushed the Turks again at Yinshan, and Jieli Khan fled far away with light cavalry.; New Book of Tang: Li Jing defeated…
What each source says
Li Jing crushed the Turks again at Yinshan, and Jieli Khan fled far away with light cavalry.
甲辰，李靖又破突厥於陰山，頡利可汗輕騎遠遁。
Location: 舊唐書 卷3 貞觀4年 2月
Li Jing defeated the Turks at Yinshan.
李靖及突厥戰于陰山，敗之
Location: 新唐書 卷002 太宗 貞觀4年2月
In 630 (Jiachen day), Li Jing defeats Xieli Khan at Yinshan.
甲辰，李靖破突厥頡利可汗於陰山。
Location: 권193 630년 항