Al-Kāfi

Hadith 1201
oppression
6ـ عَنْهُ عَنْ أَبِيهِ عَنْ هَارُونَ بْنِ الْجَهْمِ عَنْ حَفْصِ بْنِ عُمَرَ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ قَالَ أَمِيرُ الْمُؤْمِنِينَ (صَلَّى اللهُ عَلَيْهِ وآلِه) مَنْ خَافَ الْقِصَاصَ كَفَّ عَنْ ظُلْمِ النَّاسِ.
6. It is narrated from him (narrator of the Hadith above) from his father from Harun ibn al-Jahm from Hafs ibn ‘Umar from Abu ‘Abdillah (a.s.) who has said the following: “Amir al-Mu’minin, Ali ibn abu Talib (a.s.) has said, ‘Whoever is afraid of retaliation should stay away from doing injustice to people.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī