Sunan Abi Dawud 4524
سنن أبي داود#4524SahihNarrated Rafi' ibn Khadij: 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih Lighairihi
Shuaib Al ArnautSahih Lighairihi
Zubair Ali ZaiSahih
In-book reference: 41:31