question #2 Sahih Muslim 137b, Book 1, Hadith 261 : How does the reliability of narrators affect the authenticity of a hadith?

Abu Bakr b. Abi Shaiba, Ishaq b. Ibrahim, Harun b. Abdullah, Abi Usama, Walid b. Kathir, Muhammad b. Ka’b, his brother Abdullah b. Ka’b and Abi Usama.