Sahih Muslim | Book 20 | Hadith Number 4475

Narrated by It has been narrated on the authority of Jabir b. 'Abdullah that the Messenger of Allah (may peace be upon him)
It has been narrated on the authority of Jabir b. 'Abdullah that the Messenger of Allah (may peace be upon him) said: People are the followers of Quraish in good as well as evil (i.e. in the customs of Islamic as well as pre-Islamic times).