question #1 Sahih Muslim 1246a, Book 15, Hadith 229 : What is the significance of performing rituals such as clipping hair during Hajj or Umrah?

Do you know that I clipped some hair from the head of Allah’s Messenger (ﷺ) at al- Marwa with the help of a clipper? I said: I do not know it except as it verdict against you.