Sahih Bukhari Volume 003, Book 034, Hadith Number 266.
Narated By Ibn 'Abbas : 'Ukaz, Majanna and Dhul-Majaz were market-places in the Pre-lslamic period of ignorance. When Islam came, Muslims felt that marketing there might be a sin. So, the Divine Inspiration came: "There is no harm for you to seek the bounty of your Lord (in the seasons of Hajj)." (2.198) Ibn 'Abbas recited the Verse in this way.