How then is it that such perfect discipline leads to completely pure qualities? Concerning such bodhisattvas who have reached the second bodhisattva ground:

And cultivate the tenfold path of righteous acts
With ways immaculate in body, speech and mind. (2.1)

As stated among other things in the context of the second bodhisattva ground:

O victor heirs. Bodhisattvas dwelling on the bodhisattva ground Immaculate naturally abstain from killing. They avoid sticks and weapons. They avoid hostility. Filled with conscientiousness and compassion, their attitude towards all living beings is one of love and benevolence, wishing for their welfare and happiness. Even the mere thought of causing harm to sentient beings is absent, no need then to mention actually singling out a particular sentient being and deliberately inflicting serious physical harm to them.

They abstain from taking what is not given, being content with their own possessions and filled with benevolence. They are careful with the possessions of others, and considering things owned by others as others’ property, have no intention to steal. Since they would not take even a blade of grass or a leaf, there’s no need then to mention taking actual necessities of life.

They abstain from sexual misconduct, and being content with their own wife do not desire the wife of another. Seeing them to be another’s wife, or that it would be improper in terms of family relationship, signs or dharma, they do not entertain desirous thoughts towards women belonging to another – no need then to mention direct contact between the two sexual organs or unsuitable passageways.