The Great Epic of the Bhārata dynasty 13.49.10

13.49.10

māgadho vāmakaścaiva dvau vaiśyasyopalakṣitau |
brāhmaṇyāṃ kṣatriyāyāṃ ca kṣatriyasyaika eva tu || 10 ||

"Bhishma said, 'The sons that a Brahmana begets upon spouses taken from the three inferior orders, those begotten by a Kshatriya upon spouses taken from the two orders inferior to his own, O Bharata, and the sons that a Vaisya begets upon a spouse taken from the one order that is inferior to his,--are all called Apadhwansajas. They are, as thus explained, of six kinds. Listen now to me as I tell thee who the Apasadas, are. The son that a Sudra begets upon a Brahmana woman is called a Chandala. Begotten upon a Kshatriya woman by a person of the Sudra order, the son is called a Vratya. He who is born of a Vaisya woman by a Sudra father is called a Vaidya. These three kinds of sons are called Apasadas. The Vaisya, by uniting himself with a woman of the Brahmana order, begets a son that is called a Magadha, while the son that he gets upon a Kshatriya woman is called a Vamaka. The Kshatriya can beget but one kind of son upon a woman of a superior order. Indeed, the son begotten by a Kshatriya upon a Brahmana woman, is called a Suta. These three also are called Apasadas. It cannot be said, O king, that these six kinds of sons are no sons.'