Arabic (Original)
حَدَّثَنَا أَبُو النَّضْرِ حَدَّثَنَا الْمَسْعُودِيُّ حَدَّثَنَا عَاصِمُ بْنُ أَبِي النَّجُودِ عَنْ أَبِي وَائِلٍ عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ قَالَ جَاءَ ابْنُ النَّوَّاحَةِ وَابْنُ أُثَالٍ رَسُولَا مُسَيْلِمَةَ إِلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقَالَ لَهُمَا أَتَشْهَدَانِ أَنِّي رَسُولُ اللَّهِ قَالَا نَشْهَدُ أَنَّ مُسَيْلِمَةَ رَسُولُ اللَّهِ فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ آمَنْتُ بِاللَّهِ وَرُسُلِهِ لَوْ كُنْتُ قَاتِلًا رَسُولًا لَقَتَلْتُكُمَا قَالَ عَبْدُ اللَّهِ قَالَ فَمَضَتْ السُّنَّةُ أَنَّ الرُّسُلَ لَا تُقْتَلُ.
English Translation
Abu al-Nadr told us, al-Mas'udi told us, Asim ibn Abi al-Najud told us, from Abu Wa'il, from Abdullah ibn Mas'ud, who said: Ibn al-Nawwahah and Ibn Uthal, the two envoys of Musaylimah, came to the Prophet, peace and blessings be upon him, and he said to them: "Do you both testify that I am the Messenger of Allah?" They said: "We testify that Musaylimah is the messenger of Allah." The Prophet, peace and blessings be upon him, said: "I have believed in Allah and His messengers - had I been one to kill an envoy, I would have killed you both." Abdullah said: So it became established practice that envoys are not to be killed.