Hawzah News Agency - Al-Hassan ibn Muhammad has narrated from Ahmad ibn Ishaq from Sa‘dan ibn Muslim that Mu‘awiya ibn ‘Ammar said:

قُلْتُ لابِي عَبْدِ الله رَجُلٌ رَاوِيَةٌ لِحَدِيثِكُمْ يَبُثُّ ذَلِكَ فِي النَّاسِ وَيُشَدِّدُهُ فِي قُلُوبِهِمْ وَقُلُوبِ شِيعَتِكُمْ وَلَعَلَّ عَابِداً مِنْ شِيعَتِكُمْ لَيْسَتْ لَهُ هَذِهِ الرِّوَايَةُ أَيُّهُمَا أَفْضَلُ قَالَ الرَّاوِيَةُ لِحَدِيثِنَا يَشُدُّ بِهِ قُلُوبَ شِيعَتِنَا أَفْضَلُ مِنْ أَلْفِ عَابِدٍ.

"I asked Abu ‘Abdillah (al-Sadiq) , 'There is a man who narrates your hadiths, spreads them among people, and ties them to their hearts and the hearts of your Shi'a. Also, there is perhaps a worshipper among your Shi'a who does not have your narrations. Which of the two is better?' He said, 'The one who narrates our hadiths and ties them to the hearts of our Shi'a is better than 1,000 worshippers.'"

Al-Kāfi, v.1