No, a half brother and sister cannot marry in Islam.
Islamic law prohibits marriage between individuals who are related through blood (consanguinity) within certain degrees. This prohibition extends to both full and half siblings. The Quran and Sunnah clearly outline the prohibited relationships, aiming to protect family bonds and prevent potential genetic issues.
Prohibited Relationships in Islam (Consanguinity)
The following relationships are forbidden for marriage due to blood relation:
- Mothers
- Daughters
- Sisters (both full and half)
- Paternal Aunts (father's sister, both full and half)
- Maternal Aunts (mother's sister, both full and half)
- Nieces (brother's or sister's daughters, both full and half)
Explanation
The prohibition on marriage between half-siblings stems from the same principles as the prohibition on marriage between full siblings. The shared bloodline creates a close familial relationship that Islam considers incompatible with the marital bond. The wisdom behind this prohibition is multifaceted, including:
- Preservation of Family Ties: Marriage between close relatives can strain existing family relationships and create complex social dynamics.
- Moral Considerations: Islamic teachings emphasize the importance of maintaining modesty and respect within the family. Marriage between close relatives can blur these boundaries.
- Potential Genetic Concerns: Although not the primary reason, there is a higher risk of genetic disorders in offspring when parents are closely related.
Therefore, whether siblings share both parents or only one, the prohibition on marriage remains the same.
