觀無量壽佛經義疏 2.92

2.92

「『一一樹高八千由旬。』」由旬，亦云由延，亦云踰善那，西竺驛亭之量。經律所出，遠近不定，諸家多取四十里為準。二、明莊嚴，二：初、光明莊嚴；二、花果莊嚴。初、光明莊嚴，又三：初、示葉具；二、明色光；三、明珠網。初、葉具。

"‘Each tree is eight thousand yojanas high.’" "Yojana" is also called youyan or yushan'na; it is a measure of postal relay stations in Western India. The distance varies according to the sūtras and vinayas, but many schools adopt forty li as the standard. Second, explaining the adornments, in two parts: first, the adornment of light; second, the adornment of flowers and fruits. First, the adornment of light, which again has three parts: first, showing the completeness of the leaves; second, explaining the colors and lights; third, explaining the pearl nets. First, the completeness of the leaves.