Mahabharata 3.196.15

मातरं सदृशीं तात पितॄनन्ये च मन्यतेदुष्करं कुरुते माता विवर्धयति या प्रजाः

mātaraṃ sadṛśīṃ tāta pitṝnanye ca manyateduṣkaraṃ kurute mātā vivardhayati yā prajāḥ

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