Manusmriti

siva.sh/manusmriti/10/41

स्वजातिजानन्तरजाः षट् सुता द्विजधर्मिणः । शूद्राणां तु सधर्माणः सर्वेऽपध्वंसजाः स्मृताः ॥ ४१ ॥

sanskrit

Six sons, begotten (by Aryans) on women of equal and the next lower castes (Anantara), have the duties of twice-born men; but all those born in consequence of a violation (of the law) are, as regards their duties, equal to Sudras.

english translation

svajAtijAnantarajAH SaT sutA dvijadharmiNaH | zUdrANAM tu sadharmANaH sarve'padhvaMsajAH smRtAH || 41 ||

hk transliteration by Sanscript