। ॥ २८ ॥
In plain words
How could Jñāna arise from Karma-śāstra, a teaching centred on ritual action? Logic never reaches certainty; Sāṅkhya and Yoga remain caught in division, and grammarians stop at Śabda, the word.
Close to the Sanskrit
In Karma-śāstra, the teaching of ritual action, whence Jñāna? In logic there is no certainty. Sāṅkhya and Yoga have fallen into division; the grammarians are wholly intent on Śabda, words.