大方廣佛華嚴經疏 8.4

8.4

Second, explaining the names: first generally, and then specifically. Now, first, generally naming them "powers": it has the meaning of being able to destroy enemies and the meaning of being impossible to subdue; therefore they are named "powers." The Yogācārabhūmi says: "Because they are completely associated with the capability of benefiting all sentient beings in all ways, and by great authority ultimately overcome all māras and enemies, they are named 'powers.'" The Abhidharmasamuccayavyākhyā says: "Well eliminating all māras, and well responding to questions and debates, hence the ten are named 'powers.' 'Ten' is a number, an interpretation with an included numeral." The specific names will be explained when reaching the text.