Quod factum est
Quod factum est, cum in obscuro sit, ex affectione cujusque capit interpretationem. Doubtful and ambiguous clauses ought to be construed according to the intentions of the parties. Dig. 50, 17, 168, 1.
A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.