Arabic (Original)
حَدَّثَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ عَنْ عَبْدِ الرَّحْمَنِ بْنِ إِسْحَاقَ عَنِ الزُّهْرِيِّ عَنْ عَطَاءِ بْنِ يَزِيدَ عَنْ عُبَيْدِ اللَّهِ بْنِ عَدِيِّ بْنِ الْخِيَارِ عَنِ الْمِقْدَادِ بْنِ عَمْرٍو قَالَ قُلْتُ يَا رَسُولَ اللَّهِ أَرَأَيْتَ رَجُلًا ضَرَبَنِي بِالسَّيْفِ فَقَطَعَ يَدِي ثُمَّ لَاذَ مِنِّي بِشَجَرَةٍ ثُمَّ قَالَ لَا إِلَهَ إِلَّا اللَّهُ أَأَقْتُلُهُ قَالَ لَا فَعُدْتُ مَرَّتَيْنِ أَوْ ثَلَاثًا فَقَالَ لَا إِلَّا أَنْ تَكُونَ مِثْلَهُ قَبْلَ أَنْ يَقُولَ مَا قَالَ وَيَكُونَ مِثْلَكَ قَبْلَ أَنْ تَفْعَلَ مَا فَعَلْتَ.
English Translation
Isma'il ibn Ibrahim narrated to us from 'Abd al-Rahman ibn Ishaq from al-Zuhri from 'Ata' ibn Yazid from 'Ubaydullah ibn 'Adi ibn al-Khiyar from al-Miqdad ibn 'Amr who said: I said, "O Messenger of God, consider a man who struck me with his sword and cut off my hand, then took refuge from me behind a tree, then said, 'There is no god but God' -- should I kill him?" He said, "No." So I repeated it twice or three times, and he said, "No -- unless you become like him before he said what he said, and he becomes like you before you did what you did."