"the Messenger of Allah forbade selling the fruit of date palms until they are fit to eat." (Using translation from Nasāʾī 4525)

«نَهَى رَسُولُ اللَّهِ ﷺ عَنْ بَيْعِ الثَّمَرِ حَتَّى يَطْعَمَ»