FatwaFederal TerritoriesMarriage & Family
AL-KAFI #2034: HUBUNGAN ANTARA ANAK LUAR NIKAH DENGAN ADIK BERADIKNYA YANG LAIN
What is the relationship, social boundary and inheritance position between a child born out of wedlock and his or her siblings born after the parents married?
Short answer
A child born out of wedlock is lineally linked only to the mother, so he or she and siblings born within a valid marriage are maternal half-siblings only, even if the biological father is the same.
A reference, not a fatwa. First sentence of the summary below — read the original fatwa and consult your state authority before acting.
- Authority
- Federal Territories Mufti Office
- Date
- Status
- Opinion (irsyad)
- Series
- Al-Kafi li al-Fatawi
- Topic
- Marriage & Family
No evidence of gazettement in the source — this is not a gazetted fatwa.
Summary
A child born out of wedlock is lineally linked only to the mother, so he or she and siblings born within a valid marriage are maternal half-siblings only, even if the biological father is the same. They are permanent mahrams who may never marry each other, and their interaction follows the rules for full siblings in Islamic law. In inheritance they inherit from one another as maternal siblings: one-sixth for a single sibling, or a shared one-third if there is more than one.
Written in our own words from the original fatwa — check the source before acting on it.
Anak luar nikah dan adik-beradiknya yang lain yang lahir selepas kedua ibu bapa mereka bernikah ialah adik beradik seibu sahaja walaupun mempunyai bapa yang sama dari sudut biologinya.
Read the full fatwa on the Federal Territories website (new tab)
How to cite
Cite the original fatwa and its authority. Rujuk Fatwa is only where you found it.
Federal Territories Mufti Office. “AL-KAFI #2034: HUBUNGAN ANTARA ANAK LUAR NIKAH DENGAN ADIK BERADIKNYA YANG LAIN”, 21 July 2025. https://muftiwp.gov.my/ms/artikel/al-kafi-li-al-fatawi/6324-al-kafi-2034-hubungan-antara-anak-luar-nikah-dengan-adik-beradiknya-yang-lain. Found via Rujuk Fatwa: https://rujukfatwa.com/en/fatwa/child-born-out-of-wedlock-and-siblings-relationship/