《汉书·传·萧何曹参传》
相府后园靠近小吏的住所，小吏在住所裹天天喝酒唱歌，从吏深以为患，拿他们没办法，便请曹参游后园。
相舍后园近吏舍，吏舍日饮歌呼。从吏患之，无如何，乃请参游后园。
The back garden of the Prime Minister's 府 was close to the quarters of the lesser scribes. Day after day, these scribes drank and sang in their quarters, which worried the Gentlemen of the Household. Unable to do anything about it, they asked Cao Can to take a stroll in the back garden.