It was narrated that Nusair bin Dhu'luq said:
"Ibn 'Umar used to say: 'Do not revile the Companions of Muhammed, for the stay of anyone of them for a brief period (with the Prophet) is better than all the good deeds that anyone of you does in his lifetime.'" (ID)
English reference (ID): Vol. 1, Book 1, Hadith 162 (ID)
Arabic reference (ID): Book 1, Hadith 167 (ID)