Matsya Purana 180.9

180.9

na hi yakṣa kulīnānāmetadvṛttaṃ bhavatyuta.
guhyakā bata yūyaṃ vai svabhāvāt krūracetasaḥ .. 180.9 ..

His father Purṇabhadra said to his righteous son "Son! I do not recognise you as my son Your birth is unfortunate and deplorable It is not meet to lead such a life in the family of a Yakṣa You are Guhyakas and they are naturally fierce and cruel We are hard hearted We are addicted to hunting and flesh eating Brahmâ has not ordained us to follow the life that you pursue One ought not to follow the life of a different order abandoning his own You should therefore forsake your human feelings and pursue the course of your family, otherwise I should think that you have been born of men Mark my ways, who am born as a typical Yakṣa and who also perform various works pertaining to my class of being'—8-13