俱舍論疏 12.13

12.13

論「說八俱盧舍為一踰繕那」，即是四八三十二，三萬二千尺也。若以五尺步法計之，即有六千四百步。以三百六十步里法計之，即有一十八里，缺八十步。

On the Śāstra's words, "Eight krośas are said to make one yojana": This is four times eight is thirty-two: 32,000 chi. If calculated with the five-chi bu method, it is 6,400 bu. If calculated with the 360-bu li method, it is eighteen li minus eighty bu.