शूद्रां शयनमारोप्य ब्राह्मणो यात्यधोगतिम् । जनयित्वा सुतं तस्यां ब्राह्मण्यादेव हीयते ॥ १७ ॥
A Brahmana who takes a Sudra wife to his bed, will (after death) sink into hell; if he begets a child by her, he will lose the rank of a Brahmana.
english translation