Mahabharata 12.56.44
भवितव्यं सदा राज्ञा गर्भिणीसहधर्मिणाकारणं च महाराज शृणु येनेदमिष्यते
bhavitavyaṃ sadā rājñā garbhiṇīsahadharmiṇākāraṇaṃ ca mahārāja śṛṇu yenedamiṣyate
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book