Hold’em progressive bet

So someone tell if I have the progressive bet on and I hit a full house that should pay $100 right

To win the progressive you must use your two hole cards and the flop (first three community cards flipped) only

Where does it say that and that sounds like a bull shit rule

It doesn’t say that anywhere

You can see it here:

image

Where is this found on the website

That is on the left hand side of the game where the rules are.