大方廣佛華嚴經疏 35.18

35.18

Third, from 'Disciples of the Buddha' below, concluding with the superior [morality] has three meanings: 1. universally guarding the ten wholesome [deeds], which is the meaning of non-deficiency; 2. constant uninterruptedness, which is the meaning of purity, because the defilement of accidental transgression does not arise to interrupt it; 3. constant ceaselessness, which is the meaning of constant guarding. Possessing these three meanings, it obtains the name 'superior morality' (adhiśīla).