حَدَّثَنَا إِسْمَاعِيلُ حَدَّثَنَا أَيُّوبُ عَنِ الْحَسَنِ قَالَ قَالَ رَجُلٌ لِلزُّبَيْرِ أَلَا أَقْتُلُ لَكَ عَلِيًّا قَالَ كَيْفَ تَقْتُلُهُ قَالَ أَفْتِكُ بِهِ قَالَ لَا قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الْإِيمَانُ قَيْدُ الْفَتْكِ لَا يَفْتِكُ مُؤْمِنٌ
مسند امام احمد بن حنبل · Hadith 1433
It was narrated that al-Hasan said: A inan said to az-Zubair: Shall I kill ' Ali for you? He said: How would you kill him? He said: I will assassinate him. He said: No; the Messenger of Allah (PBUH) said: "Faith prohibits assassination; no believer should resort to that."
Sanad
حَدَّثَنَا إِسْمَاعِيلُ حَدَّثَنَا أَيُّوبُ عَنِ الْحَسَنِ قَالَ قَالَ رَجُلٌ لِلزُّبَيْرِ