Sunan an-Nasa'i #4545 · The Book of Financial Transactions

Sunan an-Nasa'iit was narrated that Sa'd said
Sunan an-Nasa'i · Book 44 · The Book of Financial Transactions
Sunan an-Nasa'i · كتاب 44 · كتاب البيوع والمعاملات
"The Messenger of Allah was asked about (buying) fresh dates with dried dates, and he said to those who were around him: 'Will fresh dates decrease (in weight or volume) when they dry out?" they said Yes,' so he forbade that
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا مَالِكٌ، قَالَ حَدَّثَنِي عَبْدُ اللَّهِ بْنُ يَزِيدَ، عَنْ زَيْدِ بْنِ عَيَّاشٍ، عَنْ سَعْدٍ، قَالَ سُئِلَ رَسُولُ اللَّهِ صلى الله عليه وسلم عَنِ التَّمْرِ بِالرُّطَبِ فَقَالَ لِمَنْ حَوْلَهُ ‏
"‏ أَيَنْقُصُ الرُّطَبُ إِذَا يَبِسَ ‏"‏ ‏.‏ قَالُوا نَعَمْ ‏.‏ فَنَهَى عَنْهُ ‏.‏
Reference : Sunan an-Nasa'i 4545In-book reference : Book 44, Hadith 97