Ubayd bin Sa'd and Ibn Abi Maryam narrate that they heard Sayyiduna Mu'awiyah (may Allah be pleased with him) say on the pulpit: I heard the Messenger of Allah (peace and blessings be upon him) say: "A group from my Ummah will always remain steadfast; those who abandon them will not be able to harm them, until the command of Allah comes while they are dominant over the people."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16942