Al-Matalib al-'Aliyah 4341 — The command to follow the main body

It is narrated from Sayyiduna Jundub bin Sufyan (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Soon after me there will arise fitnahs like pieces of the dark night (in their horror); they will strike a person the way the foreheads of fighting bulls clash against each other. Such will be the severity of these fitnahs that a man will be a Muslim in the morning and will have become a disbeliever by evening, and he will be a believer in the evening and will reach the morning in a state of disbelief." A man said: O Messenger of Allah (peace and blessings be upon him)! What should we do in such a situation? He (peace and blessings be upon him) said: "Confine yourselves within the four walls of your houses, and efface your recognition and fame by choosing obscurity." The man asked again: O Messenger of Allah! What is your command if an attacker forcibly enters someone's house? He (peace and blessings be upon him) said: "Let him completely restrain his hand (from fighting in the fitnah), and let him accept being Allah's slain servant but never become Allah's killing servant; for at times a person, despite being under the canopy of Islam (claiming Islam), devours his brother's wealth, sheds his blood, disobeys his Lord and commits disbelief in his Creator, and Hell becomes obligatory for such a person."
Its chain is hasan (good).
Imam Abu Ya'la also narrated it from Muhammad bin Bakkar, from Abd al-Hamid bin Bahram, with the same wording.