Sunan an-Nasa'i 4777
سنن النسائي#4777Da'ifIt was narrated from Abu Firas that "Umar said:"I saw the Messenger of Allah allowing others to seek retaliation against him
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahDaif Isnaad
Al-AlbaniDaif Isnaad
Zubair Ali ZaiIsnaad Hasan
In-book reference: 45:72