The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 254 (#Ḥadīth #254)

254 - وَبِإِسْنادِهِ عَنِ النَّبِي صَلَّى اللهُ عَلَيْهِ وَآلِهِقالَ: مَن جاءَكُم يُرِيدُ أَن يُفَرِقَ الجَماعَةِ وَيَغصِبَ الاُمَّةَ أَمْرَها وَيَتَولّى مِن غَيْرِ مَشوِرَةٍ فَاقتُلُوهُ، فَإِنَّ اللَّهَ عَزَّ وَجَلَّ قَدْ أَذِنَ ذلِكَ.

31-254 According to the same documentation, it is narrated that the Prophet (S) said, “Whenever someone comes and tries to make disunion in the society and oppressively takes over the affairs of the society, you should kill him. Indeed the Honorable the Exalted God has granted this permission.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).