四分律行事鈔資持記 2.887

2.887

初戒。（佛在釋翅壞國，象力比丘與外道論議不如，便反前語；至僧中問，復反前語，因制。）戒名中。《注戒》標云故妄語戒。疏釋云：言非稱實為妄，彰在於口為語，非心不犯名故。今云小者，對大為言，但離初篇所列聖法，已外一切皆歸此攝。大局小通，尋之可解。

The first precept. (When the Buddha was in the country of the Śākyas, the bhikṣu Hastibala had a debate with non-Buddhists and was worsted, whereupon he went back on his former words. When questioned in the Saṃgha, he again went back on his former words, because of which it was prohibited.) Concerning the precept's name: the Annotated Precepts specifies it as the precept against deliberate false speech. The Commentary explains: "Speech that does not accord with reality is 'false'; its manifestation from the mouth is 'speech'; if not done intentionally, it is not an offense, hence it is termed 'deliberate'." Now, calling it "minor" is spoken in contrast to the major; all [speech] outside of the noble dharmas listed in the first category falls under this scope. The major is restricted and the minor is pervasive; investigating it, one can understand this.