Manava Dharmashastra 5.18

5.18

pañcanakhānāṃ madhyācchvāvidhādayo bhakṣyāḥ | smṛtyantare tu khaṅge vikalpaḥ | tathā ca vaśiṣṭhaḥ ( 14 | 47 ) "khaṅge tu vivadante” iti | uṣṭravarjitā ekatodato govyajamṛgā bhakṣyāḥ | “nanu ca śvāvitprabhṛtīnāṃ pañcanakhānāṃ bhakṣyatvavacanādanyeṣāmabhakṣyatāsiddheḥ sarvānpañcanakhāniti pratiṣedhavacanamanarthakam” | naiṣa doṣaḥ | sarvaśabdena pratiṣedhe spaṣṭā pratipattirbhavati | bhakṣyaviśeṣanirdeśena tadanyeṣāṃ yā abhakṣyatāpratipattiḥ sā ānumānikī pratipattiḥ | gauravaṃ hi tathā syāt |

Medhātithi’s commentary (manubhāṣya):
This refers to the Brāhmaṇa who is in the habit of eating at the house of those Śūdra whose food he is permitted to eat.