Sahih Muslim | Book 20 | Hadith Number 4722

Narrated by It has been narrated by Sa'd b. Abu Waqqas that the Messenger of Allah (may peace be upon him)
It has been narrated by Sa'd b. Abu Waqqas that the Messenger of Allah (may peace be upon him) said: The people of the West will continue to triumphantly follow the truth until the Hour is established.