(13) باب النَّهْىِ عَنْ بَيْعِ الثِّمَارِ، قَبْلَ بُدُوِّ صَلاَحِهَا بِغَيْرِ شَرْطِ الْقَطْعِ
Abu Bakhtari reported:
I asked Ibn 'Abbas (Allah be pleased with them) about the sale of dates. He said: Allah's Messenger (ﷺ) forbade the sale of dates of the trees until one eats them or they are eaten (i. e. they are fit to be eaten) or until they are weighed (or measured). I said: What does it imply:" Until it is weighed"? Thereupon a person who was with him (Ibn Abbas) said: Until he is able to keep it with him (after plucking them).
Reference: Sahih Muslim 1537
In-book reference: Book 21, Hadith 72
USC-MSA web (English) reference(deprecated numbering scheme): Book 10, Hadith 3674