Musnad Abi Ya'la 1523 — he said: I was present with the Messenger

It is narrated from Sayyiduna Jundub bin Sufyan (may Allah be pleased with him), who was a man of the tribe of Bajilah, that he said: "I was present with the Messenger of Allah (peace and blessings be upon him) when a messenger came to him (peace and blessings be upon him) with good news from a detachment (sariyyah) that he (peace and blessings be upon him) had sent out. He informed him (peace and blessings be upon him) of the divine help that Allah had granted to that detachment and of the victory that Allah had destined for them. Then the narrator mentioned the hadith in the same way and added in it that on that occasion the Messenger of Allah (peace and blessings be upon him) said: 'Soon after me there will be (grave) trials like pieces of the dark night; they will strike like the sudden attacks of snakes and the butting of bulls. In these trials a man will be a Muslim in the morning and a disbeliever by evening, and a Muslim in the evening and a disbeliever by morning.' At this a man from among the Muslims 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: 'Withdraw into your houses and efface your fame and mention (adopt obscurity).' The man asked again: What do you think if some trouble-maker forces his way into the house of one of us? The Messenger of Allah (peace and blessings be upon him) said: 'Let him restrain his hand (from the evil act) and be the servant of Allah who is killed, and let him never be the servant of Allah who kills; for a man is outwardly under the canopy of Islam, but (having fallen into the trial) he devours his brother's wealth, sheds his blood, disobeys his Lord, commits disbelief in his Creator, and Hell becomes obligatory for him.'"