Aushanasasmriti 43

43

śūdrāyāṃ vaiśyasaṃsargādvidhinā sūcakaḥ smṛtaḥ
sūcakādviprakanyāyāṃ jātastakṣaka ucyate

From union of a Vaiśya upon a Śūdra woman according to rule, [the son] is known as a Sūcaka. / Born from a Sūcaka upon a Brahmin maiden, [the son] is called a carpenter;