question #1 Sahih Muslim 190b, Book 1, Hadith 374 : What is the significance of multiple chains of narrators in the authentication of hadiths?

This hadith is also narrated by another chain of narrators, i. e. Ibn Numair, Abu Mu’awiya, Waki’, Abu Bakr b. Abi Shaiba, Abu Kuraib, A’mash.