俱舍論疏 15.88

15.88

論「不說犯重人至制立如是」，經部通也。梵名波羅夷，此名他勝罪。惡是善他，惡勝於善，名為他勝。若初犯重，無有一念覆藏之心，不成他勝罪，即不捨戒。若一念已上覆藏，即成他勝罪，即捨戒。

On the text "It is not said that a person who commits a grave offense … established in this way": the Sautrāntika resolves this. The Sanskrit name is pārājika, here called 'defeat offense.' Evil is the 'other' of good; because evil conquers good, it is named 'defeat.' If upon initially committing a grave offense one does not have a single thought of concealment, it does not constitute a defeat offense, and thus one does not abandon the precepts. If one conceals it for one thought-moment or more, then it constitutes a defeat offense, and one immediately abandons the precepts.