Abu Dharr reported,

The Messenger of Allah ﷺ rode a donkey and seated me behind him. He said, "Abu Dharr, what would you do if the people were struck by such severe hunger that you could not rise from your bed to your mosque?"I said, "Allah and His Messenger know best."He said, "Restrain yourself."He said, "Abu Dharr, what would you do if the people were struck by such a severe death that a house would be sold for a slave," meaning the grave, "how would you act?"I said, "Allah and His Messenger know best."He said, "Be patient."He said, "Abu Dharr, what would you do if the people killed one another, until the stones of Zayt were submerged in blood, how would you act?"I said, "Allah and His Messenger know best."He said, "Stay in your house and lock your door behind you."I said, "What if I am not left alone?"He said, "Then go to those you belong to and be with them."I said, "Shall I take up my weapon?"He said, "Then you would share with them in what they are doing. But if you fear that the gleam of the sword may startle you, throw the edge of your garment over your face, so that he bears his own sin and yours."

عن أبي ذر قال

ركب رسول الله ﷺ حمارا وأردفني خلفه، وقال: يا أبا ذر، أرأيت إن أصاب الناس جوع شديد لا تستطيع أن تقوم من فراشك إلى مسجدك، كيف تصنع؟ قال: الله ورسوله أعلم، قال: تعفف. قال: يا أبا ذر، أرأيت إن أصاب الناس موت شديد، يكون البيت فيه بالعبد- يعني القبر- كيف تصنع؟ قلت: الله ورسوله أعلم، قال: اصبر. قال: يا أبا ذر، أرأيت إن قتل الناس بعضهم بعضا- يعني- حتى تغرق حجارة الزيت من الدماء، كيف تصنع؟ قال: الله ورسوله أعلم. قال: اقعد في بيتك، وأغلق عليك بابك، قال: فإن لم أترك، قال: فأت من أنت منهم، فكن فيهم، قال: فآخذ سلاحي؟ قال: إذن تشاركهم فيما هم فيه، ولكن إن خشيت أن يروعك شعاع السيف فألق طرف ردائك على وجهك حتى يبوء بإثمه وإثمك.