It was narrated from Sahl bin Abi Hathamah that the Prophet forbade selling fruits before their condition was known, but he granted a concession allowing 'Araya sales by estimate, so its people could eat fresh dates.
Hadith Referenceسنن نسائي / كتاب البيوع / 4546
Hadith Gradingالألبانی:صحيح ق دون قوله حتى يبدو صلاحه | زبیر علی زئی:متفق عليه
Urdu marginal note: “To be able to eat fresh dates”—because dates from the tree will only begin to be available after some time. For a poor person, waiting is difficult.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 4546