一切經音義 4.159

4.159

俱盧舍（義譯云大牛鳴吼聲所極處也依俱舍論指肘弓量計一俱盧舍算有二里此據平地間也若高逈處亦可五里之內皆得聞之）。

俱盧舍 (Krośa: In semantic translation it is called 'the maximum distance reached by the bellowing roar of a great bull.' According to the Abhidharmakośa-bhāṣya, calculating by the measures of fingers, forearms, and bow-lengths, one krośa amounts to two li; this is based on flat ground. If on high and open ground, it may also be heard within five li).