Al-Kāfi

Hadith 761
brotherhoodtrustworthiness
4ـ ابْنُ مَحْبُوبٍ عَنْ عَمْرِو بْنِ شِمْرٍ عَنْ جَابِرٍ عَنْ أَبِي جَعْفَرٍ (عَلَيهِ السَّلام) قَالَ قَالَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وآلِه) لِيَنْصَحِ الرَّجُلُ مِنْكُمْ أَخَاهُ كَنَصِيحَتِهِ لِنَفْسِهِ.
4. Ibn Mahbub has narrated from ‘Amr ibn Shamir from Jabir from abu Ja’far (a.s.) who has said the following: “The Messenger of Allah has said, ‘Every man among you must provide advice to his brother (in belief) just like the advice for his own self.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī