Narrated Ibn ‘ Abbas:
Dhul-Majaz and ‘Ukaz were the markets of the people during the pre-lslamic period of ignorance. When the people embraced Islam, they disliked to do bargaining there till the following Holy Verses were revealed:– There is no harm for you If you seek of the bounty Of your Lord (during Hajj by trading, etc.) (2.198)
Sahih Bukhari, Volume 2, Book 26, Number 822