天台菩薩戒疏 2.23

2.23

Nineteenth: the precept against estranging the worthy and good. Having an endowed nature that is gentle and compliant is termed 'worthy and good'; causing division between this and that is therefore termed 'estranging the good'. Reconciling disputes and settling litigations is what is proper for a bodhisattva; now, on the contrary, one creates estrangement, deceives and slanders, obstructing and abandoning correct practice; hence the sage instituted [this precept]. It specifically comprises four conditions: 1. it is a worthy and good [person]; 2. giving rise to a divisive mind of double-tongued speech; 3. carrying words back and forth; 4. the person before one understands—then one commits an offence. As for the term bhikṣu: a mendicant, one who destroys afflictions, and one who frightens Māra; from beginning to end he is called a bhikṣu.