續一切經音義 2.182

2.182

巖岫（上五銜反切韻云峯險也毛詩云惟石巖巖注云峻也下似右反爾雅曰山有穴為岫郭璞云謂巖穴也）。

巖岫 (The first character is pronounced 五 + 銜 fanqie. The Qieyun says: 'Precipitous peaks.' The Mao Commentary on the Book of Odes says: 'Towering are the crags', on which the commentary states: 'Steep.' The second character is pronounced 似 + 右 fanqie. The Erya says: 'A mountain with caves is called a xiu.' Guo Pu says: 'This refers to rocky caves').