Does the deceased first wife's verbal donation of her share of the house to her husband's children – who are not her own – along with an unofficial document not registered with the Real Estate Registry, waive the right of her legal heirs to inheritance?

To prove the wife's relinquishment of her share in the house to her husband's children, or her bequest of it, the children must present evidence to the Sharia Court. Their mere claim is not sufficient to establish this. Therefore, the matter must be brought before the court to consider and rule on the case, as such disputes are best handled by the Sharia judiciary.