四分戒本疏卷第一．第二．第三 3.101

3.101

有緣至軍二宿往觀軍陣合戰戒第五十　過不異前既有因緣聽至軍中。宜應坐住。復方便往觀。過同於初。故所以制　別緣有五。一先有緣在軍中宿。二軍陣合戰。三方便往觀。四見便犯。已下正明戒本。此戒因六群有緣在軍觀諸鬪力。中有一人為箭所射。居士怪情。比丘白佛。因斯制戒。

The fiftieth precept on going to view an army in array joining battle when having a reason to be with the army for two nights. The fault is no different from before: since he is permitted to go into the army when having a cause or condition, he ought to sit and stay; yet he further makes an effort to go and view it. The fault is the same as the first [precept], and for this reason it was instituted. The specific conditions are five: 1. First having a condition to stay overnight in the army; 2. The army in array joining battle; 3. Making an effort to go and view it; 4. Seeing it immediately constitutes the offense. Below is the proper explanation of the Prātimokṣa text. This precept was instituted because the group of six, having a reason to be in the army, were watching various contests of strength, and one among them was shot by an arrow; laypersons thought it strange, bhikṣus reported it to the Buddha, and on this account he instituted the precept.