Alaba left Bayern this summer for Real Madrid.
But Hoeness said: "He [Alaba] told me once: 'my dream is to play for Barcelona one day'.
"So I asked him if he wanted to negotiate with the resident or their bankruptcy administrator."
Bayern face Barcelona on Tuesday in the Champions League, and the Bavarians have come a long way from previously modelling their club on the Catalans.
"Barcelona are no longer a role model for us," Hoeness added.
"Bayern are the favourites because Barcelona can't be at their best due to the sales of important players and their economic problems."
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