Art. 2785. Total or partial destruction of property, rights and obligations of parties.
When a thing sold is destroyed from unforeseen accident, the loss falls entirely on the purchaser; in case of a sale reserving rent, the loss is sustained by both parties; for on one side the lessee loses the enjoyment of the thing, and on the other the lessor loses the right to demand the rent which is extinguished.
But in order that the rent be extinguished, the thing must have perished entirely; if it be lost only in part, the rent is only reducible in proportion to the loss.