פירוש על עבודה זרה 92:10

When it comes to certain laws, if an object has been modified in some ways, it loses its original status. For instance, if a thief steals a piece of wood and then modifies it into something else, he need not return the wood. He must only return the value of the wood. The question here is whether when he harvests the grain and eventually grinds it into flour it loses its status as a worshipped thing.