Verse 180

शिष्यादन्यत्रदेवेशि ।नवदेद्यस्यकस्यचित् ॥नराणांचफलप्राप्तौ ।भक्तिरेवहिकारणं ॥

In plain words

Lady of the gods, let him not speak it to anyone at all other than a śiṣya. And for men to gain the fruit, bhakti alone is the cause.