Manusmriti

siva.sh/manusmriti/9/166

स्वक्षेत्रे संस्कृतायां तु स्वयमुत्पादयेद् हि यम् । तमौरसं विजानीयात् पुत्रं प्राथमकल्पिकम् ॥ १६६ ॥

sanskrit

Him whom a man begets on his own wedded wife, let him know to be a legitimate son of the body (Aurasa), the first in rank.

english translation

svakSetre saMskRtAyAM tu svayamutpAdayed hi yam | tamaurasaM vijAnIyAt putraM prAthamakalpikam || 166 ||

hk transliteration by Sanscript