ANSWER:

If he wasn’t married to her mother and he had never disclosed it or claimed her to be his daughter, she has no right in anything as she was born out of wedlock and is not related to you.

QUESTION: After my father’s death we discovered he has a 4/5 yrs daughter from an extramarital affair theres no nikah/marriage certificate only birth certificate naming him as the father. Does she have any inheritance rights? Are we obligated to provide for them? Should we offer to take in the child with us? What is the most just, merciful action to protect my father from punishment? Please help.