question #1 Sahih Muslim 204b, Book 1, Hadith 408 : How does the reliability of narrators affect the authenticity of a hadith?

The same hadith is narrated by Ubaidallah b. Umar al-Qawariri from Abu ‘Uwana, who transmitted it to ‘Abd al-Malik b. ‘Umair on the same chain of transmitter and the hadith of Jarir is more perfect and comprehensive.