The prohibition of selling fresh dates in exchange for dry dates except in the case of 'Araya Sahih Muslim 1542 d
Translation
Ibn 'Umar (Allah be pleased with them) reported Allah's Messenger (ﷺ) having forbidden Muzabana, and Muzabana is the selling of dry dates by measure for fresh dates and the selling of raisins by measure for grapes and selling of all Ports of fruits on the basis of calculation.