Mahabharata 3.2.78

पितृमातृमयी सिद्धिः प्राप्ता कर्ममयी च तेतपसा सिद्धिमन्विच्छ द्विजानां भरणाय वै

pitṛmātṛmayī siddhiḥ prāptā karmamayī ca tetapasā siddhimanviccha dvijānāṃ bharaṇāya vai

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