Al-Kāfi

Hadith 1323
backbiting-slander
1ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ حَمَّادِ بْنِ عِيسَى عَنْ إِبْرَاهِيمَ بْنِ عُمَرَ الْيَمَانِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ إِذَا اتَّهَمَ الْمُؤْمِنُ أَخَاهُ انْمَاثَ الإيمَانُ مِنْ قَلْبِهِ كَمَا يَنْمَاثُ الْمِلْحُ فِي الْمَاءِ.
1. Ali ibn Ibrahim has narrated from his father from Hammad ibn ‘Isa from Ibrahim ibn ‘Umar al-Yamani from Abu ‘Abdillah (a.s.) who has said the following: “‘When a believer accuses his brother (in faith), belief melts away in his heart just as salt melts away in water.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī