It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that I heard the Messenger of Allah (peace and blessings be upon him) say: "Soon trials will cover you like pieces of a dark night (black and terrifying). The one who will be saved from these trials is a man who has secluded himself on the top of a high mountain, living on the milk of his goats, or a man at the frontiers holding the reins of his horse, standing firm before the enemy and eating from the provision gained by his sword (the spoils of war)." This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.