Search for the rare decay [Formula Presented] in [Formula Presented] collisions at [Formula Presented]

We search for the rare decay W{sup {+-}}{yields}D{sub s}{sup {+-}}{gamma} in 82 pb{sup -1} of p{ovr p} collisions recorded with the Collider Detector at Fermilab. At the 95% confidence level, we find an upper limit on the relative branching fraction to be {Gamma}(W{sup {+-}}{yields}D{sub s}{sup {+-}}{gamma})/{Gamma}(W{sup {+-}}{yields}e{sup {+-}}v)<1.2x10{sup -2}.