Mahabharata 3.81.26

भवन्तो यदि मे प्रीता यद्यनुग्राह्यता मयिपितृप्रसादादिच्छेयं तपसाप्यायनं पुनः

bhavanto yadi me prītā yadyanugrāhyatā mayipitṛprasādādiccheyaṃ tapasāpyāyanaṃ punaḥ

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