It is narrated from Sayyiduna al-Mughirah bin Shu'bah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "A group from my Ummah will always remain dominant upon the truth until the Hour is established."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 18085