In the early days of the pilgrimage, people used to trade at Mina, Arafah, the market of Dhul-Majaz, and during the seasons of Hajj. They became apprehensive about conducting trade while in the state of pilgrim sanctity, so Allah, glorified is He, revealed, "There is no blame upon you for seeking bounty from your Lord" [Baqarah 2:198], meaning during the seasons of Hajj.He said, Ubayd bin Umayr told me that he used to recite it this way in the mushaf.
إن الناس في أول الحج كانوا يتبايعون بمنى وعرفة وسوق ذي المجاز، ومواسم الحج فخافوا البيع وهم حرم فأنزل الله سبحانه: {ليس عليكم جناح أن تبتغوا فضلا من ربكم} في مواسم الحج. قال: فحدثني عبيد بن عمير أنه كان يقرؤها في المصحف.
Abu Dawud (1734) narrated it from Muhammad bin Bashshar, who said, Hammad bin Masada told us, who said, Ibn Abu Dhib told us, from Ata bin Abu Rabah, from Ubayd bin Umayr, from Abdullah bin Abbas, and he related it. Its chain is hasan because of Ubayd bin Umayr, the freed slave of Ibn Abbas.Abu Dawud also narrated it (1735) from Ahmad bin Salih, who said, Ibn Abu Fudayk told us, Ibn Abu Dhib informed me, from Ubayd bin Umayr (Ahmad bin Salih said something to the effect that he was the freed slave of Ibn Abbas), from Abdullah bin Abbas, that in the earliest days of Hajj, people used to trade, and he related its meaning up to his words, "the seasons of Hajj."Ahmad bin Salih's narration was also related by Abu Bakr bin Abu Dawud in his book al-Masahif (193) (1/328-329) with a similar chain. Ibn Abu Dhib said, Ubayd told me that he used to recite it that way in the Quran text.If Ahmad bin Salih's statement is correct, then Ubayd bin Umayr was narrated from by Ibn Abu Dhib just as he was narrated from by Ata bin Abu Rabah, and by this the chain becomes hasan, since it has a firm basis.