Sayyidah Umm Malik al-Bahziyyah (may Allah be pleased with her) said: The Messenger of Allah (peace and blessings be upon him) said: "The best of people in times of tribulation (fitnah) is a man who keeps apart with his wealth, worshipping his Lord and paying its due, and a man who sets out in the path of Allah holding the reins of his horse; he strikes fear into the enemy and the enemy strikes fear into him."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21822