classical gas-clapton? a rumour

is it a rumour that clapton ever recorded this. he doesnt hav an album with it...i read somewhere that he never actaully played the song and its a huge rumour that he had anything to do with it is this true, i do hav a copy of the song that says the artist is clapton but and i hav seen tabs on the internet but ...i hav never herd of the date or time at which he recorded this. the one that everyone thinks is clapton i bleive is actually mason williams but an acoustic recording of it.