German philosophical quote--cite?

Is anyone familiar with a phrase about the dingliche Dingheit des Dingens? Is this from Kant? Wittgenstein? Source? A friend mentioned it in conversation but couldn’t remember who it was.

“Das Denken ist Dingheit, oder Dingheit ist Denken.”
-Hegel.
Is that it?

No, it’s not that one. . . thanks, though. It was something that sounded amusing because of the dingliche Dingheit. I tried a Google search and got that Hegel, too, though. Hmm. . .

Maybe something like this by Heidegger? :

(from Das Ding (what else?))

A couple of other convoluted quotes which could be mixed up in it:

“Was wir ein Ding nennen, ist ein gewisser gesetzmäßiger Zusammenhang von zusammengehörigen Empfindungen.” - Mach

“…da nämlich alle Dinge nur Gedankendinge sind, wissen wir von den Dingen nicht zu sagen.” - apparently Fritz Mauthner

also the Hegel quote previously mentioned.

Chuck Berry: My Ding-a-ling. . . .

Stumped me, then. Sounds kind of obscure and redundant, even for the idealists.

Is this it?

I found it in a page that appears to be written mostly in Slovak, http://bbs.inway.cz/bbs2www/CZphilosophy/022c

That seems a bit closer in flavor, and I heard it from an art historian so it makes sense. That’s probably it. Should’a known it was Heidegger’s style. Thanks, guys.