It was narrated that Abu Hurayrah said that the Messenger of Allaah (peace and blessings of Allaah be upon him) said: "Let none of you walk with one piece of footwear. Either walk with both, or none"

(The devil walks in one sole)

This position indicates that shaytan (satan/devil) always fights the Sunnah, which the Messenger of Allaah (peace and blessings of Allaah be upon him) came with, and prefers the left foot over the right foot and the left hand over the right.

And he (shaytan) tries hard with everything he has to make you contradict what the Prophet peace be upon him forbade.
This is how the devil makes fun of every sorcerer and makes him a means to spread infidelity, misguidance and disobedience among people and ignorance of what the Messenger of Allaah (peace and blessings of Allaah be upon him) came with and to mock it.

Explanation of Hadith:

http://library.islamweb.net/newlibrar...