사히흐 무슬림 #2553

يَا عِبَادِي إِنِّي حَرَّمْتُ الظُّلْمَ عَلَى نَفْسِي وَجَعَلْتُهُ بَيْنَكُمْ مُحَرَّمًا فَلاَ تَظَالَمُوا

The Messenger of Allah (ﷺ) said, among what he narrates from his Lord: 'O My servants, I have forbidden oppression for Myself and have made it forbidden amongst you, so do not oppress one another.'