عَنْ عَمْرِو بْنِ عَوْفٍ اَلْمُزَنِيِّ - رضى الله عنه - أَنَّ رَسُولَ اَللَّهِ - صلى الله عليه وسلم -قَالَ: { اَلصُّلْحُ جَائِزٌ بَيْنَ اَلْمُسْلِمِينَ, إِلَّا صُلْحاً حَرَّمَ حَلَالاً وَ 1 أَحَلَّ حَرَاماً، وَالْمُسْلِمُونَ عَلَى شُرُوطِهِمْ, إِلَّا شَرْطاً حَرَّمَ حَلَالاً وَ 2 أَحَلَّ حَرَاماً } رَوَاهُ اَلتِّرْمِذِيُّ وَصَحَّحَهُ 3 . وَأَنْكَرُوا عَلَيْهِ; 4 . لِأَنَّ رَاوِيَهُ كَثِيرَ بْنَ عَبْدِ اَللَّهِ بْنِ عَمْرِوِ بْنِ عَوْفٍ ضَعِيفٌ 5 . وَكَأَنَّهُ اِعْتَبَرَهُ بِكَثْرَةِ طُرُقِهِ 6 . وَقَدْ صَحَّحَهُ اِبْنُ حِبَّانَ مِنْ حَدِيثِ أَبِي هُرَيْرَةَ 7 .
Narrated 'Amr bin 'Auf al-Muzani (RA): Allah's Messenger (ﷺ) said: "Reconciliation is permissible between Muslims, except one which makes unlawful something which is lawful, or makes lawful something which is unlawful; and Muslims must abide by their conditions (which they have made), except for a condition which makes unlawful something which is lawful, or makes lawful something which is unlawful." [at-Tirmidhi reported it and graded it Sahih (authentic)]. However, the Hadith scholars criticized him (for grading this Hadith as Sahih) because the narration of Kathir bin 'Abdullah bin 'Amr bin 'Auf is weak. It is as though at-Tirmidhi considered it (reliable) due to its many chains of narration. Ibn Hibban declared the aforesaid Hadith to be Sahih (authentic) from the narration of Abu Hurairah (RA).