Sayyiduna Awf bin Malik (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "Will you leave my commanders to me? The parable of me and them is like that of a man who bought camels and cattle and grazed them, then brought them to a watering trough; they went into it, drank its clear water and left its muddy water. So its clear water is for you and its muddy water is against them."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15178