Among them is a man with a defective arm, or an incomplete arm, or a small arm. If you could exercise restraint, I would have told you what Allah promised on the lips of Muhammad ﷺ to those who kill them. I said: Did you hear that from Muhammad ﷺ? He said: Yes, by the Lord of the Kaʿbah; yes, by the Lord of the Kaʿbah; yes, by the Lord of the Kaʿbah. (Using translation from Aḥmad 626)
فِيهِمْ رَجُلٌ مُخْدَجُ الْيَدِ أَوْ مُودَنُ الْيَدِ أَوْ مَثْدُونُ الْيَدِ لَوْلَا أَنْ تَبْطَرُوا لَحَدَّثْتُكُمْ مَا وَعَدَ اللهُ ﷻ الَّذِينَ يُقَاتِلُونَهُمْ عَلَى لِسَانِ مُحَمَّدٍ قُلْتُ أَنْتَ سَمِعْتَهُ مِنْ مُحَمَّدٍ ﷺ؟ قَالَ إِيْ وَرَبِّ الْكَعْبَةِ إِيْ وَرَبِّ الْكَعْبَةِ إِيْ وَرَبِّ الْكَعْبَةِ