It was narrated that Abu Raihanah said: "We heard that the Messenger of Allah SAW forbade filing (the teeth) and tattoos".
The Prophet Muhammad (SAW) also taught us that we should always strive for excellence in everything we do, including taking care of our bodies. We should strive to maintain good hygiene and health habits so that we can live long and healthy lives that will please Allah SWT. By avoiding activities such as filing teeth or getting tattoos, we show respect for ourselves and for Allah's creation by taking proper care of our bodies according to His teachings.