Manusmriti

siva.sh/manusmriti/9/172

पितृवेश्मनि कन्या तु यं पुत्रं जनयेद् रहः । तं कानीनं वदेन्नाम्ना वोढुः कन्यासमुद्भवम् ॥ १७२ ॥

sanskrit

A son whom a damsel secretly bears in the house of her father, one shall name the son of an unmarried damsel (Kanina, and declare) such offspring of an unmarried girl (to belong) to him who weds her (afterwards).

english translation

pitRvezmani kanyA tu yaM putraM janayed rahaH | taM kAnInaM vadennAmnA voDhuH kanyAsamudbhavam || 172 ||

hk transliteration by Sanscript