حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ وَعَفَّانُ الْمَعْنَى قَالَا حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ عَنْ أَبِي أُمَامَةَ بْنِ سَهْلٍ قَالَ كُنَّا مَعَ عُثْمَانَ رَضِيَ اللَّهُ عَنْهُ وَهُوَ مَحْصُورٌ فِي الدَّارِ فَدَخَلَ مَدْخَلًا كَانَ إِذَا دَخَلَهُ يَسْمَعُ كَلَامَهُ مَنْ عَلَى الْبَلَاطِ قَالَ فَدَخَلَ ذَلِكَ الْمَدْخَلَ وَخَرَجَ إِلَيْنَا فَقَالَ إِنَّهُمْ يَتَوَعَّدُونِي بِالْقَتْلِ آنِفًا قَالَ قُلْنَا يَكْفِيكَهُمُ اللَّهُ يَا أَمِيرَ الْمُؤْمِنِينَ قَالَ وَبِمَ يَقْتُلُونَنِي إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ لَا يَحِلُّ دَمُ امْرِئٍ مُسْلِمٍ إِلَّا بِإِحْدَى ثَلَاثٍ رَجُلٌ كَفَرَ بَعْدَ إِسْلَامِهِ أَوْ زَنَى بَعْدَ إِحْصَانِهِ أَوْ قَتَلَ نَفْسًا فَيُقْتَلُ بِهَا فَوَاللَّهِ مَا أَحْبَبْتُ أَنَّ لِي بِدِينِي بَدَلًا مُنْذُ هَدَانِي اللَّهُ وَلَا زَنَيْتُ فِي جَاهِلِيَّةٍ وَلَا فِي إِسْلَامٍ قَطُّ وَلَا قَتَلْتُ نَفْسًا فَبِمَ يَقْتُلُونَنِي
مسند امام احمد بن حنبل · Hadith 437
It was narrated that Abu Umamah bin Sahl said: We were with 'Uthman when he was under siege in the house, He went to the entrance of the house, from which his words could be heard in al-Balnt. He went to that entrance, then came out to us and said: They were threatening to kill me just now. We said: Allah will suffice you against them, O Ameer al-Mu'mineen. He said: Why would they kill me? I heard the Messenger of Allah say: "It is not permissible (to shed) the blood of a Muslim except in three cases: if a man disbelieves after becoming Muslim, or commits zina after being married, or kills someone and is executed in return." By Allah, I have never wished to change my religion after Allah guided me; I never committed zina either during the Jahiliyyah or in Islam; and I have never killed anyone. So why would they kill me?
Sanad
حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ وَعَفَّانُ الْمَعْنَى قَالَا حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ عَنْ أَبِي أُمَامَةَ بْنِ سَهْلٍ