Matsya Purana 227.73

227.73

savarṇākrośane daṃḍyastathā dvādaśakaṃ smṛtam.
vādeṣvavacanīyeṣu tadeva dviguṇaṃ bhavet .. 227.72 ..

People abusing men of their own community should be fined only 12 Paṇas and those who indulge in most foul abuse should be fined twice the amount prescribed—72

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