Battle of Shahu Mountain (843) — the same event in Old Book of Tang and New Book of Tang
Old Book of Tang: Shi Xiong crushed the Huihu at Shahu Mountain, and Wujie Khagan fled wounded.; New Book of Tang: Shi Xiong defeated the Uyghurs at…
What each source says
Shi Xiong crushed the Huihu at Shahu Mountain, and Wujie Khagan fled wounded.
太原劉沔奏：「昨率諸道之師至大同軍，遣石雄襲迴鶻牙帳，雄大敗迴鶻於殺胡山，烏介可汗被創而走。
Location: 舊唐書 卷18上 會昌3年 1月
Shi Xiong defeated the Uyghurs at Shahu Mountain.
天德軍行營副使石雄及回鶻戰于殺胡山，敗之
Location: 新唐書 卷008 穆宗~宣宗 會昌3年1月