It is narrated from Sayyiduna Ali (may Allah be pleased with him) that he says: You recite this verse, "After the bequest made by the deceased and the payment of debts (distribute the inheritance)," but the Messenger of Allah (peace and blessings be upon him) decided that the debt should be paid before fulfilling the bequest. Also, the Prophet (peace and blessings be upon him) commanded that full brothers (from both parents) will inherit, not half-brothers (from the father's side only); a person's full brother inherits, not the half-brother.