Bhagavatapurana 6.7.31

6.7.31

tasmāt pitṝṇāmārtānāmārtiṃ paraparābhavam /
tapasāpanayaṃstāta sandeśaṃ kartumarhasi //

31. & 32. Therefore, O child, it is fit for thee to do their request in removing by virtue of thy tapas the grief of thy afflicted fathers consequent on their defeat at the hands of enemies; we desire thee, as one imbued with the Lord's spirit and being a brahmin fit for veneration, to be our priest, so that through thy power we may completely overcome our enemies.