Matsya Purana 227.68

227.68

śataṃ brāhmaṇamākruśya kṣatriyo daṇḍamarhati.
vaiśyastu dviśataṃ rājan! śūdrastu vadhamarhati .. 227.67 ..

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