Conducting business during the Haji season is boleh according to explicit Al-Quranic permission. Allah says: 'There is no sin upon you for seeking bounty from your Lord (during Haji)' (Al-Baqarah, 2:198). This verse was revealed because the early Muslims felt hesitant about trading during the sacred Haji season, thinking it might diminish their worship. The Al-Quran explicitly removed this concern.
Sheikh Ibn Baz stated that buying, selling, and trading during the Haji season is boleh as long as it does not interfere with the performance of the Haji rites. The companions of Nabi engaged in commerce during the Haji season, and the markets of Mekkah were active during this time. Ibn Abbas reported that Dhul-Majaz and Ukaz were trade markets during Haji in the pre-Islamic and Islamic periods.
Sheikh Al-Fawzan clarified an important distinction: a jamaah haji who performs Haji and also conducts some business on the side is not blameworthy. However, a person who makes the trip primarily for business and performs Haji as a secondary activity is acting against the spirit of the ibadah haji. Haji should be the primary intention, with business being incidental. The jamaah haji should not let trade distract them from the rites, from making doa at Arafah, from the remembrance of Allah, or from the other sacred moments of Haji.