Actually, it is from both, the original appeared in "Treasure of he Sierra Madre, then Mel Brooks pulled it off as a funny requote of that in Blazing Saddles.



And Mel:



Tidbit: Much of Blazing Saddles was acually conceived and in a way, written by the late Richard Pryor. Mel set up a camera and Richard would actually improvise scenes in realtime for the camera after being given the setup. Almost the entire "He's Comin'" scene when Cleavon Little rides into town for the first time was pretty much exactly how Pryor improv'd on it. And Mel Brooks, of course, played the drunken Gabby Johnson up on the roof, and the scuttlebutt is that he really was drunk for the shoot.


--Mac