question #1 Sahih Muslim 1246b, Book 15, Hadith 230 : What is the significance of the location of al-Marwa in Islamic rituals?

I clipped the hair (from the head of) Allah’s Messenger (may peace he upon him) with a clipper while he was at al-Marwa, or I saw him getting his hair clipped with a clipper as he was at al-Marwa. 1722