Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:16766Abū Saʿīd b. Abū ʿAmr > Abū al-ʿAbbās al-Aṣam > Baḥr b. Naṣr > Ibn Wahb > Khālid b. Ḥumayd al-Mahrī > ʿUmar a freed slave of Ghufrah

[Machine] "That I would reconsider it and write to him, 'Umar ibn Abd al-Aziz sent greetings to you. As for what follows, by the One in whose hand is my soul, if you had killed him, I would have killed you with him, and if you had cut him, I would have cut you with him, and if you had beaten him, I would have beaten him more severely than you. So when this letter of mine reaches you, take it to the common people and curse the one who cursed me or forgive him, for that is dearer to me. For it is not permissible to kill a Muslim because of the curse of someone else, except in the case of someone who curses the Messenger of Allah ﷺ , for whoever curses the Messenger of Allah ﷺ , his blood is permissible (to be shed)."  

البيهقي:١٦٧٦٦أَخْبَرَنَا أَبُو سَعِيدِ بْنُ أَبِي عَمْرٍو ثَنَا أَبُو الْعَبَّاسِ الْأَصَمُّ ثَنَا بَحْرُ بْنُ نَصْرٍِ ثَنَا ابْنُ وَهْبٍ أَخْبَرَنِي خَالِدُ بْنُ حُمَيْدٍ الْمَهْرِيُّ عَنْ عُمَرَ مَوْلَى غُفْرَةَ أَنَّ عَبْدَ الْحَمِيدِ بْنَ عَبْدِ الرَّحْمَنِ بْنِ زَيْدِ بْنِ الْخَطَّابِ كَانَ عَلَى الْكُوفَةِ فِي عَهْدِ عُمَرَ بْنِ عَبْدِ الْعَزِيزِ فَكَتَبَ إِلَى عُمَرَ إِنِّي وَجَدْتُ رَجُلًا بِالْكُنَاسَةِ سُوقٌ مِنْ أَسْوَاقِ الْكُوفَةِ يَسُبُّكَ وَقَدْ قَامَتْ عَلَيْهِ الْبَيِّنَةُ فَهَمَمْتُ بِقَتْلِهِ أَوْ بِقَطْعِ يَدِهِ أَوْ لِسَانِهِ أَوْ جَلْدِهِ ثُمَّ بَدَا لِي

أَنْ أُرَاجِعَكَ فِيهِ فَكَتَبَ إِلَيْهِ عُمَرُ بْنُ عَبْدِ الْعَزِيزِ سَلَّامٌ عَلَيْكَ أَمَّا بَعْدُ وَالَّذِي نَفْسِي بِيَدِهِ لَوْ قَتَلْتَهُ لَقَتَلْتُكَ بِهِ وَلَوْ قَطَعْتَهُ لَقَطَعْتُكَ بِهِ وَلَوْ جَلَدْتَهُ لَأَقَدْتُهُ مِنْكَ فَإِذَا جَاءَ كِتَابِي هَذَا فَاخْرُجْ بِهِ إِلَى الْكُنَاسَةِ فَسُبَّ الَّذِي سَبَّنِي أَوِ اعْفُ عَنْهُ فَإِنَّ ذَلِكَ أَحَبُّ إِلَيَّ فَإِنَّه لَا يَحِلُّ قَتْلُ امْرِئٍ مُسْلِمٍ بِسَبِّ أَحَدٍ مِنَ النَّاسِ إِلَّا رَجُلٌ سَبَّ رَسُولَ اللهِ ﷺ فَمَنْ سَبَّ رَسُولَ اللهِ ﷺ فَقَدْ حَلَّ دَمُهُ