Finger In Tashahud And Tawatur
Sure we don’t know the exacts but we can hint at the basic details. How is moving the finger whilst sitting the same as raising the right hand for an oath? No one raises their finger for an oath, they raise their right hand or put it on their chest
Again the finger is not raised and a one is not shown. It is slightly bent and moving according to some traditions. So it can’t be this