question #1 Sahih al-Bukhari 1713, Book 25, Hadith 191 : What is the significance of following the tradition of the Prophet Muhammad in the method of animal slaughter?

I saw Ibn `Umar passing by a man who had made his Badana sit to slaughter it. Ibn `Umar said,
“Slaughter it while it is standing with one leg tied up as is the tradition of Muhammad.”