Al-Kāfi
Hadith 32910ـ عَنْهُ عَنِ ابْنِ مَحْبُوبٍ عَنِ الْعَلاءِ بْنِ رَزِينٍ عَنْ عَبْدِ الله بْنِ أَبِي يَعْفُورٍ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ كُونُوا دُعَاةً لِلنَّاسِ بِالْخَيْرِ بِغَيْرِ أَلْسِنَتِكُمْ لِيَرَوْا مِنْكُمُ الإجْتِهَادَ وَالصِّدْقَ وَالْوَرَعَ.
10. It is narrated from him (narrator of the Hadith above) from ibn Mahbub from al- ‘Ala’ ibn Razin from ‘Abd Allah ibn abu Ya’fur from Abu ‘Abdillah (a.s.) who has said the following: “Abu ‘Abd Allah (a.s.) has said, ‘Preach and call people to the good, but not with your tongues. They must see from your hard work, truthfulness and restraint from worldly matters (sins).’”