Matsya Purana 227.86

227.86

sahāsanamabhiprepsurutkṛṣṭasyāpakṛṣṭajaḥ .
kaṭyāṃ kṛtāṅko nirvāsyaḥ sphicaṃ vāpyasya kartayet .. 227.85 ..

The lips of a low class man occupying the seat of a high class man should be chopped off with a mark sealed on his hip—85

A Brâhmaṇa who indulges with a Châṇḍâla woman or a woman of a different caste or eats their food or accepts a gift from them unknowingly tolas of gold or silver according to the seriousness of the offence The one who breaks anyone's bone should be exiled from the country—87