If two men dispute possession of an item, with neither having proof, and both claim exclusive ownership, what is the ruling?

Primary text

Each party swears an oath against the other regarding the half awarded to the opponent, and the item is divided equally between them. This is an undisputed ruling, as each party has possession over half, and the possessor's word is accepted with an oath. If both refuse to swear (nakala), the item is divided equally because each forfeits their claim to the other's half.