(146) And to those who are Jews We prohibited every animal of uncloven hoof; and of the cattle and the sheep We prohibited to them their fat, except what adheres to their backs or the entrails or what is joined with bone. [By] that We repaid them for their transgression. And indeed, We are truthful.
(147) So if they deny you, [O Muḥammad], say, “Your Lord is the possessor of vast mercy; but His punishment cannot be repelled from the people who are criminals.”
Edit: I know most of you are not scholars, but if you could provide me with an academic answer that would be great.