I am not sure if the contract says "because of the Sabbath", but I would venture a wild guess that the franchise agreement does prohibit being open on Sunday.
I am not sure about what’s in the contract only the ones I have seen are not open on Sunday.
I believe Chick Fil A has all of its stores closed on Sundays, but this would be in the franchise agreement and upfront from the start. It sounds as if the Beasleys weren’t really aware of the sharia restriction, though.
“I’ll bet you there’s nothing in Chik-fil-a’s franchise agreement that prohibits being open on Sunday because of the Sabbath.”
I believe it gives a choice of Saturday or Sunday, and some in malls are open on both.