Al-Kāfi
Hadith 7592ـ عَنْهُ عَنِ ابْنِ مَحْبُوبٍ عَنْ مُعَاوِيَةَ بْنِ وَهْبٍ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ يَجِبُ لِلْمُؤْمِنِ عَلَى الْمُؤْمِنِ النَّصِيحَةُ لَهُ فِي الْمَشْهَدِ وَالْمَغِيبِ.
2. It is narrated from him (narrator of the Hadith above) from ibn Mahbub from Mu’awiyah ibn Wahab from Abu ‘Abdillah (a.s.) who has said the following: “It is of a believer’s obligations to provide good advice to another believer face to face or in his absence.”