續一切經音義 4.10

4.10

醴泉（上來啟反爾雅曰甘雨時降萬物以嘉謂之醴泉瑞應圖曰王者飲食純和則醴泉出飲之令人壽東觀漢記云光武中元元年醴泉出京師飲之痼疾皆愈說文從酉豊聲也）。

Sweet spring (醴泉: for the upper, lái + qǐ [lǐ]; the Erya says, "When sweet rain falls in due season and the myriad things flourish, it is called a sweet spring." The Ruiying tu says, "When a ruler's food and drink are pure and harmonious, sweet springs gush forth; drinking them causes longevity." The Dongguan Hanji says, "In the first year of the Zhongyuan era of Emperor Guangwu, a sweet spring emerged in the capital; those who drank it were cured of chronic illnesses." The Shuowen derives it from 酉 with 豊 as phonetic).