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Is it a condition for the father's blood type to match that of the son to prove paternity?

1 min readAlso available in العربية

Islam has made marriage the way to establish paternity. Accordingly, any married woman who gives birth, the child is attributed to her husband, even if the child's blood type differs from the father's blood type. The proof for this is the saying of the Prophet, peace and blessings be upon him: "The child is for the bed (i.e., the lawful husband), and for the fornicator is the stone (i.e., punishment and deprivation)." The establishment of a child's lineage to the one who is married to his mother is a right for the child, which is only forfeited if his father divorces his mother through li'an (oath of condemnation), based on a reason he knows. As for the difference in blood types as an indication, the answer to that lies with specialists, who are doctors.

Summarized from the full answer at Ftawy · reviewed Sep 2, 2026

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