Mahabharata 12.47.24

शुक्ले देवान्पितॄन्कृष्णे तर्पयत्यमृतेन यःयश्च राजा द्विजातीनां तस्मै सोमात्मने नमः

śukle devānpitṝnkṛṣṇe tarpayatyamṛtena yaḥyaśca rājā dvijātīnāṃ tasmai somātmane namaḥ

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