Sahih Muslim | Book 20 | Hadith Number 4720

Narrated by Yazid b. al-Asamm
It has been related by, Yazid b. al-Asamm that he heard Mu'awiya b. Abu Sufyan quote a tradition from the Holy Prophet (may peace be upon him) which he related from the Prophet (mail peace he upon him)-and he did not hear him quote from the Holy Prophet (may peace be upon him) any tradition other than this in the course of his sermon from the pulpit-that whom Allah wants to do a favour, He grants him an understanding of religion. A group of people from the Muslims will remain on the Right Path and continue until the Day of Judgment to triumph over those who oppose them.