Accepting Information Given by a Truthful Person

Bukhari :: Book 9 :: Volume 91 :: Hadith 362

Narrated 'Umar:

There was a man from the Ansar (who was a friend of mine). If he was not present in the company of Allah's Apostle I used to be present with Allah's Apostle, I would tell him what I used to hear from Allah's Apostle, and when I was absent from Allah's Apostle he used to be present with him, and he would tell me what he used to hear from Allah's Apostle .