حَدَّثَنَا يُوسُفُ بْنُ مُوسَى، حَدَّثَنَا جَرِيرٌ، عَنْ يَزِيدَ بْنِ أَبِي زِيَادٍ، عَنْ مُجَاهِدٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ، قَالَ قَرَأَ هَذِهِ الآيَةَ ‏ End hadith 4‏ قَالَ كَانُوا لاَ يَتَّجِرُونَ بِمِنًى فَأُمِرُوا بِالتِّجَارَةِ إِذَا أَفَاضُوا مِنْ عَرَفَاتٍ ‏.‏

Narrated Abdullah ibn Abbas: Ibn Abbas recited this verse: 'It is no sin for you that you seek the bounty of your Lord', and said: The people would not trade in Mina (during the hajj), so they were commanded to trade when they proceeded from Arafat. Translation Not Available

Book Ref: Sunan Abi Dawud Book 11 Hadith 1731
Web Ref:  Sunan Abi Dawud Book 10 Hadith 1727