Sahih
Muslim
صحيح مسلم
21
The Book of Transactions
كتاب البيوع
Chapter 14: The prohibition of selling fresh dates in exchange for dry dates except in the case of 'Araya
باب تَحْرِيمِ بَيْعِ الرُّطَبِ بِالتَّمْرِ إِلاَّ فِي الْعَرَايَا
Sahih Muslim 1539 i
Ubaidullah reported this hadith with a slight change of words on the same authority (as quoted above).
وَحَدَّثَنَاهُ ابْنُ الْمُثَنَّى، حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، عَنْ عُبَيْدِ اللَّهِ، بِهَذَا الإِسْنَادِ وَقَالَ أَنْ تُؤْخَذَ بِخَرْصِهَا .
Grade: Sahih