question #2 Sahih Muslim 206b, Book 1, Hadith 411 : What is the significance of the chain of narrators in the authentication of hadiths?

This hadith is narrated from the Apostle (ﷺ) by another chain of narrators, ‘Amr al-Naqid, Mu’awiya b. ‘Amr, Abdullah b. Dhakwan, A’raj on the authority of Abu Huraira.