كتاب البيوع
21  
The Book of Transactions
(14)
Chapter: The prohibition of selling fresh dates in exchange for dry dates except in the case of 'Araya
(14)
باب تَحْرِيمِ بَيْعِ الرُّطَبِ بِالتَّمْرِ إِلاَّ فِي الْعَرَايَا ‏‏
Sahih Muslim 1539 f

Yahya b. Sa'id reported this hadith with the same chain of transmitters but with this change:

'Ariyya implies that date-palm trees should be donated to the people and then they sell it with a measure of dry dates.
وَحَدَّثَنَاهُ يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا هُشَيْمٌ، عَنْ يَحْيَى بْنِ سَعِيدٍ، بِهَذَا الإِسْنَادِ غَيْرَ أَنَّهُ قَالَ وَالْعَرِيَّةُ النَّخْلَةُ تُجْعَلُ لِلْقَوْمِ فَيَبِيعُونَهَا بِخَرْصِهَا تَمْرًا ‏.‏
Reference : Sahih Muslim 1539f
In-book reference : Book 21, Hadith 81
USC-MSA web (English) reference : Book 10, Hadith 3682
  (deprecated numbering scheme)