Verify sources before accepting any narration as true.

This hadith emphasizes the importance of narrating a hadith with a reliable chain of transmitters. It is important to ensure that the source and authenticity of any narration is verified before it can be accepted as true. The narrator in this case was Muhammad b. Muthanna, Ibn Bashshar, Muhammad b. Ja'far and Shu'ba who were all reliable sources for transmitting information accurately and truthfully. By verifying the source and authenticity of any narration we can ensure that only accurate information is being shared which will help us to make informed decisions based on facts rather than hearsay or speculation.