Do the parents of the deceased inherit from their son, or does the deceased son inherit from his parents, in the event that the order of death is unknown and the testimonies of witnesses vary? And what is the waiting period (iddah) for a wife whose husband has died, and who sponsors their children, and is the cost of treating a person injured in an accident obligatory from the money of the deceased driver?

No one among those who died in a car accident inherits if there is doubt about who died first and who died later. The testimony of the brother's wife is not sufficient to prove his death after his parents. The wife observes her 'iddah (definition) in her husband's house in Qatar if she can return, otherwise, in her current location with a mahram (definition). It is permissible to move to a safe house if there is harm. Guardianship over orphans, in the absence of the father and grandfather, belongs to the father's executor; otherwise, to the judge. The house furniture belongs to the husband's heirs if it is proven that he furnished it. Otherwise, what is suitable for men goes to his heirs, and what is suitable for women goes to the wife upon oath. If the brother's negligence in the accident is proven, his 'aqilah (male relatives responsible for paying blood money) bears the blood money for the parents, and two expiations for their accidental killing are due from his estate, along with compensation to the nephew for the harm.