A man of the Ansar was killed at Khaybar and his relatives went to the Prophet ﷺ and mentioned that to him. He asked: Have you two witnesses who can testify to the murderer of your friend? They replied: Messenger of Allah! there was not a single Muslim present, but only Jews who sometimes have the audacity to do even greater crimes than this. He said: Then choose fifty of them and demand that they take an oath; but they refused and the Prophet ﷺ paid the blood-wit himself. (Using translation from Abū Dāʾūd 4524)
أَصْبَحَ رَجُلٌ مِنَ الْأَنْصَارِ مَقْتُولًا بِخَيْبَرَ فَانْطَلَقَ أَوْلِيَاؤُهُ إِلَى رَسُولِ اللهِ ﷺ فَذَكَرُوا ذَلِكَ لَهُ فَقَالَ أَلَكُمْ شَاهِدَانِ يَشْهَدَانِ عَلَى قَتْلِ صَاحِبِكُمْ ؟ قَالُوا يَا رَسُولَ اللهِ لَمْ يَكُنْ ثَمَّ أَحَدٌ مِنَ الْمُسْلِمِينَ وَإِنَّمَا هُمْ يَهُودُ وَقَدْ يَجْتَرِئُونَ عَلَى أَعْظَمَ مِنْ هَذَا وَذَكَرَ الْحَدِيثَ