Rasarnava 3.30

3.30

aprakāśaṃ tu tenaiva mantrarājaṃ rasāṅkuśam
aprakāśaṃ ca nārīṇāṃ rakṣayetpraṇavaṃ tathā
mahāsamayavibhraṃśaṃ nārīṇāṃ hṛdayaṃ yathā //

Thus the king of mantras, Rasāṅkuśa, should be unrevealed;
and he should protect the Praṇava, unrevealed to women,
just as a breach of the great covenant [arises from] the heart of women.