Mahabharata 1.54.13

पाद्यमाचमनीयं च अर्घ्यं गां च विधानतःपितामहाय कृष्णाय तदर्हाय न्यवेदयत्

pādyamācamanīyaṃ ca arghyaṃ gāṃ ca vidhānataḥpitāmahāya kṛṣṇāya tadarhāya nyavedayat

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