Book of Han: The King of Han surrounded Xiang Yu at Gaixia; at night he heard the Han troops singing Chu songs on all sides, and Xiang Yu fled with…
The King of Han surrounded Xiang Yu at Gaixia; at night he heard the Han troops singing Chu songs on all sides, and Xiang Yu fled with several hundred riders; his army was routed.
十二月，圍羽垓下。羽夜聞漢軍四面皆楚歌
Location: 漢書卷001 漢高祖五年十二月
Xiang Yu's army camped at Gaixia was surrounded by Han troops in several layers, and at night Chu songs rose from all sides; Xiang Yu was startled and sang 'My strength uproots mountains' (the Gaixia Song).
夜聞漢軍四面皆楚歌，項王乃大驚曰：「漢皆已得楚乎？是何楚人之多也！」項王則夜起，飲帳中。
Location: 史記卷007 項羽本紀
In the twelfth month, at Gaixia, Xiang Yu ran out of troops and food and was surrounded several layers deep by the Han and the lords' armies; at midnight, hearing Chu songs from all sides, he was startled and sang a sorrowful song.
十二月，項王至垓下，兵少，食盡，與漢戰不勝，入壁；漢軍及諸侯兵圍之數重。
Location: 資治通鑑 卷011 (원문 단락 #750, -202년)