Mahabharata 13.134.36

पुत्रवक्त्रमिवाभीक्ष्णं भर्तुर्वदनमीक्षतेया साध्वी नियताचारा सा भवेद्धर्मचारिणी

putravaktramivābhīkṣṇaṃ bharturvadanamīkṣateyā sādhvī niyatācārā sā bhaveddharmacāriṇī

Our plain-language meaning of this verse is waiting for scholar review.