। ॥ ४९ ॥
In plain words
Knowing born of a Vṛtti—a movement of mind—is called Jñāna. Vijñāna is pure knowing alone. Jñāna destroys Ajñāna; Vijñāna is of the nature of both.
Close to the Sanskrit
Whatever knowledge is born of a mental modification (vṛtti) — that indeed is jñāna; vijñāna is knowing alone. Jñāna is the destroyer of ignorance; and vijñāna is of the nature of both.