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 «لَكُمْ شَاهِدَانِ يَشْهَدَانِ عَلَى قَاتَلِ صَاحِبِكُمْ؟» قَالُوا يَا رَسُولَ اللهِ لَمْ يَكُنْ ثَمَّ أَحَدٌ مِنَ الْمُسْلِمِينَ وَإِنَّمَا هُمْ يَهُودٌ وَهُمْ يَجْتَرِؤُونَ عَلَى مَا هُوَ أَعْظَمُ مِنْ هَذَا قَالَ «فَاخْتَارُوا مِنْهُمْ خَمْسِينَ فَاسْتَحْلِفُوهُمْ» فَوَدَاهُمْ رَسُولُ اللهِ ﷺ مِنْ عِنْدَهُ