Vaishnava Dharmashastra 26.6

26.6

hīnajātiṃ striyaṃ mohād udvahanto dvijātayaḥ
kulāny eva nayanty āśu sasaṃtānāni śūdratāṃ //

Men of the three first castes, who through folly marry a woman of the lowest caste, quickly degrade their families and progeny to the state of Sûdras.
7, If his oblations to the gods and manes and (his hospitable attentions) to guests are offered principally through her hands, the gods and manes (and the guests) will not eat such offerings, and he will not go to heaven.