स्त्रीष्वनन्तरजातासु द्विजैरुत्पादितान् सुतान् । सदृशानेव तानाहुर्मातृदोषविगर्हितान् ॥ ६ ॥
Sons, begotten by twice-born man on wives of the next lower castes, they declare to be similar (to their fathers, but) blamed on account of the fault (inherent) in their mothers.