四分律行事鈔資持記 2.533

2.533

明妨處中。難約害己，妨據礙他，故分二位。《四分》。特云草車，以草車最大，故以為量。《善見》五種。尸陀此云寒林，棄死屍處。誌記也。輄即梯檔。拳一肘，一尺八寸；上下，有十二間，計二丈一尺六寸。（不通橫梯迴轉，故名妨也。）《十誦》九相，並據房外尋內為言，故先標之。有下，列示。五種，他所護地；四種，嶮礙處。（準《善見》、《十誦》妨處，與《四分》難處相濫，蓋所集不同耳。）

In explaining places of hindrance: "danger" relates to harming oneself, while "hindrance" relies on obstructing others, hence they are divided into two categories. The Dharmaguptaka-vinaya specifically mentions grass carts, because grass carts are the largest, and thus are taken as the measure. The Samantapāsādikā lists five kinds. Śītavana is translated here as cold forest, a place where corpses are discarded. "Mark" means record. Guāng refers to the rungs of a ladder. A fist is one cubit, which is one foot eight inches; up and down there are twelve spaces, calculating to two zhang, one foot, and six inches. (It does not allow a horizontal ladder to turn around, hence it is called a hindrance.) The Daśādhyāya-vinaya's nine marks are all stated looking from outside the hut inward, which is why it is marked first. From "There are…" downward, they are listed and shown: five kinds are ground protected by others; four kinds are precipitous and obstructive places. (According to the places of hindrance in the Samantapāsādikā and the Daśādhyāya-vinaya, they overlap with the places of danger in the Dharmaguptaka-vinaya; this is simply due to differences in compilation.)