Narrated Abu Firas: 'Umar b. al-Khattab (ra) addressed us and said: I did not send my collectors (of zakat) so that they strike your bodies and that they take your property. If that is done with someone and he appeals to me, I shall take retaliation on him. Amr ibn al-'As said: If any man (i.e. governor) inflicts disciplinary punishment on his subjects, would you take retaliation on him too? He said: Yes, by Him in Whose hand my soul is, I shall take retaliation on him. I saw that the Messenger of Allah (ﷺ) has given retaliation on himself.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا أَبُو صَالِحٍ، أَخْبَرَنَا أَبُو إِسْحَاقَ الْفَزَارِيُّ، عَنِ الْجُرَيْرِيِّ، عَنْ أَبِي نَضْرَةَ، عَنْ أَبِي فِرَاسٍ، قَالَ خَطَبَنَا عُمَرُ بْنُ الْخَطَّابِ رضى الله عنه فَقَالَ إِنِّي لَمْ أَبْعَثْ عُمَّالِي لِيَضْرِبُوا أَبْشَارَكُمْ وَلاَ لِيَأْخُذُوا أَمْوَالَكُمْ فَمَنْ فُعِلَ بِهِ ذَلِكَ فَلْيَرْفَعْهُ إِلَىَّ أَقُصُّهُ مِنْهُ قَالَ عَمْرُو بْنُ الْعَاصِ لَوْ أَنَّ رَجُلاً أَدَّبَ بَعْضَ رَعِيَّتِهِ أَتَقُصُّهُ مِنْهُ قَالَ إِي وَالَّذِي نَفْسِي بِيَدِهِ أَقُصُّهُ وَقَدْ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم أَقَصَّ مِنْ نَفْسِهِ .
sunnah.com