四分律刪補隨機羯磨 1.45

1.45

(Second, regarding the āraṇya, there are also two kinds: if there is no danger, most vinaya schools say "one krośa"—which, according to the Za baozang jing, is "five li", and this is traditionally accepted as the standard; if it is an āraṇya with danger, according to the Samantapāsādikā's measure of "seven gabbhas", being separated by fifty-eight paces, four chi, and eight cun, the karman may be performed.)