Bahz bin Hakim narrated from his father that his grandfather Mu'awiyah Al-Qushairi said:
"The Messenger of Allah said: 'Let the one who is present convey to the one who is absent.'" (ID)
English reference (ID): Vol. 1, Book 1, Hadith 234 (ID)
Arabic reference (ID): Book 1, Hadith 240 (ID)