Manusmriti

siva.sh/manusmriti/10/68

तावुभावप्यसंस्कार्याविति धर्मो व्यवस्थितः । वैगुण्याज् जन्मनः पूर्व उत्तरः प्रतिलोमतः ॥ ६८ ॥

sanskrit

The law prescribes that neither of the two shall receive the sacraments, the first (being excluded) on account of the lowness of his origin, the second (because the union of his parents was) against the order of the castes.

english translation

tAvubhAvapyasaMskAryAviti dharmo vyavasthitaH | vaiguNyAj janmanaH pUrva uttaraH pratilomataH || 68 ||

hk transliteration by Sanscript