La. Civ. Code art. 2451
Current with operative changes from the 2024 Third Special Legislative Session
A hope may be the object of a contract of sale. Thus, a fisherman may sell a haul of his net before he throws it. In that case the buyer is entitled to whatever is caught in the net, according to the parties' expectations, and even if nothing is caught the sale is valid.
La. C.C. § 2451