Musnad Ahmad 1188
It was narrated that Abul-Wadi’ said:
I saw ‘Ali when he killed the people of an-Nahrawan. He said: Look for the deformed one among the slain. They said: We did not find him. He said: Look for him, for by Allah I did not lie and I was not told a lie. And they brought him out from beneath the slain. Abul-Wadi’ said: It is as if I can see him, an Abyssinian with one of his hands like the breast of a woman, on which were hairs like the tail of a jerboa.
حَدَّثَنَا عَبْد اللَّهِ، حَدَّثَنَا مُحَمَّدُ بْنُ أَبِي بَكْرٍ الْمُقَدَّمِيُّ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، حَدَّثَنَا جَمِيلُ بْنُ مُرَّةَ، عَنْ أَبِي الْوَضِيءِ، قَالَ شَهِدْتُ عَلِيًّا رَضِيَ اللَّهُ عَنْهُ حِينَ قَتَلَ أَهْلَ النَّهْرَوَانِ قَالَ الْتَمِسُوا الْمُخْدَجَ فِي الْقَتْلَى قَالُوا لَمْ نَجِدْهُ قَالَ اطْلُبُوهُ فَوَاللَّهِ مَا كَذَبْتُ وَلَا كُذِبْتُ حَتَّى اسْتَخْرَجُوهُ مِنْ تَحْتِ الْقَتْلَى قَالَ أَبُو الْوَضِيءِ فَكَأَنِّي أَنْظُرُ إِلَيْهِ حَبَشِيٌّ إِحْدَى يَدَيْهِ مِثْلُ ثَدْيِ الْمَرْأَةِ عَلَيْهَا شَعَرَاتٌ مِثْلُ ذَنَبِ الْيَرْبُوعِ‏.‏