the messenger of Allah forbade Muzabana, and Muzabanah means selling fresh dates still on tree for dried dates by measure, and selling fresh grapes for raisins by measure.  

أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنِ الْمُزَابَنَةِ وَالْمُزَابَنَةُ بَيْعُ الثَّمَرِ بِالتَّمْرِ كَيْلاً وَبَيْعُ الْكَرْمِ بِالزَّبِيبِ كَيْلاً  

"the Messenger of Allah forbade Muhaqalah and Muzabana."(Hasan )  

نَهَى رَسُولُ اللَّهِ ﷺ عَنِ الْمُحَاقَلَةِ وَالْمُزَابَنَةِ  

"Zaid bin Thabit told me that the Messenger of Allah granted a concession regarding the sale of 'Arays."  

أَنَّ رَسُولَ اللَّهِ ﷺ رَخَّصَ فِي الْعَرَايَا  

the Messenger of Allah granted a concession regarding 'Araya sales regarding dried dates and fresh dates.  

أَنَّ رَسُولَ اللَّهِ ﷺ رَخَّصَ فِي الْعَرَايَا بِالتَّمْرِ وَالرُّطَبِ