p. 254
अप्रमादी भवेदेतैः स चाप्यष्टगुणो मतः ॥ २७ ॥
In plain words
By these a person becomes apramādī — never letting attention slip. And that discipline itself is reckoned as eightfold.
Close to the Sanskrit
By these one would become free of negligence; and that too is held to be eight-qualitied.