Gāndharva-lakṣaṇa
Traits/Classification of the Gandharvas) and Royal-Genealogical Continuities (Vamśa-prasaṅga
पितुश्चापारितोषेण गुरोर्देगध्रीवधेन च / अप्रोक्षितोपयोगाच्च त्रिविधस्ते व्यतिक्रमः
pituścāpāritoṣeṇa gurordegadhrīvadhena ca / aprokṣitopayogācca trividhaste vyatikramaḥ
By displeasing your father, by slaying the guru’s Degadhrīva, and by using what was not ritually purified—threefold is your transgression.