Manusmriti

siva.sh/manusmriti/10/66

अनार्यायां समुत्पन्नो ब्राह्मणात् तु यदृच्छया । ब्राह्मण्यामप्यनार्यात् तु श्रेयस्त्वं क्वेति चेद् भवेत् ॥ ६६ ॥

sanskrit

If (a doubt) should arise, with whom the preeminence (is, whether) with him whom an Aryan by chance begot on a non-Aryan female, or (with the son) of a Brahmana woman by a non-Aryan,

english translation

anAryAyAM samutpanno brAhmaNAt tu yadRcchayA | brAhmaNyAmapyanAryAt tu zreyastvaM kveti ced bhavet || 66 ||

hk transliteration by Sanscript