一切經音義 4.284

4.284

巢穴（上柴[夕/有]反毛詩惟鵲有巢說文鳥在木上也鄭注禮記巢高也象形字也經從果作巢誤也下玄血反說文土室易曰上古穴居而野處是也前經音義第二經卷第四十一具釋也）。

Nests and caves [巢穴] (the upper character is chai + you fan [chao]. The Mao Odes says: 'Only the magpie has a nest.' The Shuowen jiezi says: 'A bird upon a tree.' Zheng's commentary on the Book of Rites says: 'A nest is high; it is a pictographic character.' In the sūtra it is written with 'fruit' as 巢, which is an error. The lower character is xuan + xue fan [xue]. The Shuowen jiezi says: 'An earthen chamber. The Book of Changes states: In high antiquity, people dwelt in caves and lived in the wilderness—this is it.' Fully explained in fascicle forty-one of the second sūtra in the sounds and meanings of the previous sūtra.)