Describe the specific liability structure for capital providers in a 'Mudarabah' contract applied to a new fishing venture, in the event of losses not caused by negligence.

In a Mudarabah contract applied to a new fishing venture, the specific liability structure for capital providers, known as the Rabb al-Mal, in the event of losses not caused by negligence, is as follows: A Mudarabah is a partnership where one party, the Rabb al-Mal (capital provider), provides all the capital, and the other party, the Mudarib (manager or entrepreneur), contributes their labor, skill, and expertise to manage the venture. Profits are shared between them according to a pre-agreed ratio. However, in the case of losses not attributable to the Mudarib's negligence, misconduct, or breach of the contract terms, the entire financial loss is borne solely by the Rabb al-Mal. The Rabb al-Mal loses the capital invested in the venture. The Mudarib, in this scenario, does not suffer any financial loss from their own capital; their loss is limited to the uncompensated effort, time, and labor they expended, and the forfeiture of their expected share of profits. For example, if the Rabb al-Mal invests funds to purchase fishing equipment and supplies for the venture, and a sudden, unforeseen storm (not due to the Mudarib's negligent navigation or operation) destroys the equipment, the Rabb al-Mal will bear the full financial loss of the destroyed equipment. The Mudarib, having put in time and effort, would lose only their effort and the potential profits they would have earned, but would not be financially liable for the cost of the lost equipment.