Mahabharata 3.281.18

यमस्तु तं तथा बद्ध्वा प्रयातो दक्षिणामुखःसावित्री चापि दुःखार्ता यममेवान्वगच्छतनियमव्रतसंसिद्धा महाभागा पतिव्रता

yamastu taṃ tathā baddhvā prayāto dakṣiṇāmukhaḥsāvitrī cāpi duḥkhārtā yamamevānvagacchataniyamavratasaṃsiddhā mahābhāgā pativratā

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