(13) باب النَّهْىِ عَنْ بَيْعِ الثِّمَارِ، قَبْلَ بُدُوِّ صَلاَحِهَا بِغَيْرِ شَرْطِ الْقَطْعِ
Ibn Umar (Allah be pleased with them) reported Allah's Messenger' (ﷺ) as saying:
Do not buy fruits (on the trees) until their good condition becomes clear.
Reference: Sahih Muslim 1534 g
In-book reference: Book 21, Hadith 68
USC-MSA web (English) reference(deprecated numbering scheme): Book 10, Hadith 3671