Sayyiduna Fadala bin Ubaid (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said at the occasion of the Farewell Pilgrimage:“Shall I not inform you about the believer? He is the one from whom people are safe regarding their wealth and lives. And the Muslim is the one from whose tongue and hand people are safe. And the Mujahid is the one who strives against his own self in obedience to Allah. And the emigrant is the one who abandons sins and mistakes.”