The Kitáb-i-Aqdas

Questions and Answers amplifies the provisions of the law as it relates to the shares of the inheritance allocated to the brothers and sisters of the deceased. If the brother or sister is from the same father as the deceased, he or she will inherit his or her full allotted share. If, however, the brother or sister is from another father he or she will inherit only two thirds of the allotted share, the remaining one third reverting to the House of Justice (Q and A 6). Further, in the case where the deceased has full brothers or full sisters 185 among his heirs, half-brothers and half-sisters from the mother’s side do not inherit (Q and A 53). The half-brothers and half-sisters will, of course, be due to receive inheritance from their own father’s estate.