the Messenger of Allah forbade selling fruits until their condition is known. (Using translation from Nasāʾī 4520)

نَهَى رَسُولُ اللهِ ﷺ عَنِ الثَّمَرِ أَنْ يُبَاعَ حَتَّى يَبْدُوَ صَلَاحُهُ