Pulei (651) — the same event in Old Book of Tang and Zizhi Tongjian

Old Book of Tang: Ashina Helu attacked and captured Jinling City and Pulei County.; Zizhi Tongjian: In July 651, the Western Turk Shabolo Khan…

What each source says

Old Book of Tang (Jiu Tangshu), Annals · AD 651 · 蒲類

Ashina Helu attacked and captured Jinling City and Pulei County.

秋七月丁未,賀魯寇陷金嶺城、蒲類縣,遣武候大將軍梁建方、右驍衛大將軍契苾何力為弓月道總管以討之。
Location: 舊唐書 卷4 永徽2年 7月

Zizhi Tongjian (Comprehensive Mirror) · AD 651 · 庭州

In July 651, the Western Turk Shabolo Khan invades Tingzhou, takes Jinling city and Puliu county, kills thousands and plunders.

秋,七月,西突厥沙缽羅可汗寇庭州,攻陷金嶺城及蒲類縣,殺略數千人。
Location: 권199 651년 항

Where the sources differ

A and B are two of the sources listed above.

On what pointSource ASource BWhat differs (in Korean)
NumbersZizhi Tongjian (Comprehensive Mirror)Old Book of Tang (Jiu Tangshu), Annalsa 수천 명 살해 / b 살해 수 기록 없음
WhoZizhi Tongjian (Comprehensive Mirror)Old Book of Tang (Jiu Tangshu), Annalsa 서돌궐 사발라가한 / b 아사나하로

Place: 蒲類海

Show on the map — open Old Book of Tang (Jiu Tangshu), Annals