Whichever makes it not smell, and leaves no visible traces. Paper may be good enough.
I think it’s an order of magnitude thing. IMO there are many orders of magnitude between operating room sterile and a chunk of dog poo sticking to your shoe.* Our skin is amazingly dirty if you look at it under a microscope: dirt, germs, parasites, etc. It’s why surgeons have to spend so much time cleaning up, and have to wear sterile gloves. The difference between wiping and water (no soap) is much less viewed that way.
*Sterility is measured by a Sterility Assurance Level (SAL), which is logarithmic.
