一切經音義 9.28

9.28

俞旬（庾朱反又作由旬或由延又作踰闍那皆一也並訛也正言踰繕那此譯云合也應也計合應爾許度量同此方驛邏也案五百弓為一拘盧舍八拘盧舍為一踰繕那即此方三十里也言古者聖王一日所行之里數）。

Yuxun (俞旬, fanqie 庾朱 [y/zhu]). Also written youxun (yojana) or youyan, or written as yushena; these are all one and the same, and are corrupt. Correctly spoken it is yushanna (yojana). Translated here it means 'conjoining' or 'fitting', meaning calculating the proper measure, identical to the courier relay stations of this region. Note that five hundred bows make one krośa, and eight krośas make one yojana, which corresponds to thirty li in this region. It refers to the number of li traversed in one day by an ancient sage king.