四分律行事鈔資持記 2.461

2.461

The precept against great false speech. (The Buddha was in Vaiśālī at a time when grain was scarce. Along the Vaggumudā River, those spending the rains retreat praised one another for having attained superhuman states, thereby obtaining offerings. The Buddha rebuked them and instituted the precept.) The term 'false speech' is general; adding 'great' distinguishes it from the small, being restricted solely to claiming to be a sage.