That’s not a claim of credit - it’s simply praise for the people who pulled it off - and he did in fact deny involvement.
Seriously, try to prove OBL was involved - don’t rely on your biases, and don’t rely on single-sourced points from interested parties. You’ll find it amazingly difficult to do.
"...And for the record, we had agreed with the Commander-General Muhammad Ataa, Allah have mercy on him, that all the operations should be carried out within 20 minutes, before Bush and his administration notice. It never occurred to us that the commander-in-chief of the American armed forces would abandon 50,000 of his citizens in the twin towers to face those great horrors alone, the time when they most needed him..."
Those highlighted and underlined areas of his own words indicates foreknowledge, discussion, and planning to me, of which he was a part.
And those are his words, not a transcript from a conversation by someone typing shorthand, but from a video where he spoke those words, heard and seen by millions of arabic speaking viewers, many of whom had no reason to mis-translate what he said.
Sure, he may have denied it in the days following 9/11, but why give your enemies any information, especially if you may have other things planned?
I think you can say there were people in the Saudi government somewhere who were in cahoots with him if you can provide proof, but I don’t think you can reasonably say he didn’t have a major role (if not THE major role) when he explicitly talks about planning it.