Sunan an-Nasa'i 4130
سنن النسائي#4130SahihIt was narrated from Abu Bakrah that:The Prophet [SAW] said: "Do not revert to misguidance after I am gone, striking the necks of one another (killing one another)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 37:165