al-Harith bin 'Abdullah bin 'Ayyash الحارث بن عبد الله بن عياش · The Book on Hajj

"The Quraish and those who followed their religion - and they were called Al-Hums - would stand at Al-Muzdalifah, and they would say: 'We are the people of Allah.' The others would stand at Arafat, so Allah the Mighty and Sublime revealed: Then depart from where the people depart."