 if he had said the authenticated part is that which neither of its two bones can move on its own with an apparent movement then the authenticated part would have been included in it according to the sheikhs terminology. and this would have been more appropriate.
ولو كان قال إن الموثق ما ليس لأحد عظميه أن يتحرك وحده حركة ظاهرة لدخل الموثق فيه باصطلاح الشيخ. وكان هذا أولى.