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. (Using translation from Nasāʾī 4542)
«أَنَّ النَّبِيَّ ﷺ نَهَى عَن بَيْعِ الثَّمَرِ حَتَّى يَبْدُو صَلَاحُهُ وَرَخَّصَ فِي الْعَرَايَا أَنْ تُبَاعَ بِخَرْصِهَا يَأْكُلُهَا أَهْلُهَا رُطَبًا»