obscure statement

See: enigma
References in classic literature ?
For example, ten or twelve years before, a shower of small frogs had fallen, as is credibly attested by a contemporaneous chronicle, the record concluding with a somewhat obscure statement to the effect that the chronicler considered it good growing-weather for Frenchmen.
The star submitted an obscure statement about why she would no longer personally submit messages, but did not explain what happened.
He himself was aware that these terms "[did] not quite please the experts," but defended them as a pedagogical strategy "so that the material being discussed will be understood and the mind not be suspended in ignorance because of some ambiguous and obscure statement or remark" (237; from the introduction to his earlier treatise, Musica autoschediastike).
Rowett's jetted off to slurp cocktails on a beach somewhere so there won't be much news on the transfer front; Panos is in the Far East tweeting obscure statements from an airport departure lounge, and most Blues fans have now diverted their attentions to the Euros.
Egyptians have the right to know their identities, instead of being given mysterious and obscure statements.
In the main these chapters are intellectually rigorous, and in places strikingly profound; yet there are obscure statements, repetition of theory and complex, contradictory argumentation.