Article 1813

The buyer loses the right to terminate the contract or to require the seller to deliver substitute things if it is impossible for him to make restitution of the things substantially in the condition in which he received them.

The preceding sub-Article does not apply:

if the impossibility of making restitution of the things or of making restitution of the things substantially in the condition in which the buyer received them is not due to his act or omission;

if the things or part of the things have perished or deteriorated as a result of the examination provided for in Article 1756; or

if the things or part of the things have been sold in the normal course of business or have been consumed or transformed by the buyer in the course of normal use before he discovered or ought to have discovered the lack of conformity.