It wasnarrated from Abu Sa'eed Al-Khudri that the Messenger of Allah(ﷺ) passed by a boy who was skinning a sheep. The Messenger ofAllah(ﷺ) said to him:
"Step aside and I will show you how."The Messengerof Allah (ﷺ) put his hand between the skin and theflesh, and thrusthis arm in until it disappeared up to the armpit,and said: "O boy,this is how you skin it." Then he went and ledthe people in prayerand did not perform Wudu'. (IT)
English reference (IT): Vol. 4, Book 27, Hadith 3179 (IT)
Arabic reference (IT): Book 27, Hadith 3300 (IT)