Mencius - Book 5, Part 1, Chapter 9A

Wan Chang asked Mencius, 'Some say that Pâi-lî Hsî sold himself to a cattle-keeper of Ch'in for the skins of five rams, and fed his oxen, in order to find an introduction to the duke Mû of Ch'in; was this the case?' Mencius said, 'No; it was not so. This story was invented by men fond of strange things.

'Pâi-lî Hsî was a man of Yü. The people of Tsin, by the inducement of a round piece of jade from Ch'ûi-chî, and four horses of the Ch'ü breed, borrowed a passage through Yü to attack Kwo. On that occasion, Kung Chih-ch'î remonstrated against granting their request, and Pâi-lî Hsî did not remonstrate.
~ James Legge translation via nothingistic.org ~

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