Arabic (Original)
حَدَّثَنَا بَهْزٌ وَعَفَّانُ قَالَا حَدَّثَنَا هَمَّامٌ قَالَ عَفَّانُ فِي حَدِيثِهِ حَدَّثَنَا قَتَادَةُ عَنْ يَزِيدَ أَخِي مُطَرِّفٍ عَنْ عِيَاضِ بْنِ حِمَارٍ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِثْمُ الْمُسْتَبَّيْنِ مَا قَالَا فَعَلَى الْبَادِئِ مَا لَمْ يَعْتَدِ قَالَ عَفَّانُ أَوْ حَتَّى يَعْتَدِيَ الْمَظْلُومُ.
English Translation
Bahz and Affan told us, they said: Hammam told us — Affan said in his narration: Qatadah told us — from Yazid, brother of Mutarrif, from Iyad ibn Himar, that the Prophet, peace and blessings be upon him, said: The sin of the two who curse each other, for whatever they said, falls upon the one who initiated it, so long as the wronged one does not transgress. Affan said: or, until the wronged one transgresses.