The Messenger of Allah ﷺ forbade the sale of fruit or date palms until their ripeness becomes apparent.Ibn Umar was asked, "What is meant by their ripeness?"He replied, "That their susceptibility to blight has passed."
حدثنا محمد بن جعفر حدثنا شعبة عن عبد الله بن دينار قال سمعت
نهى رسول الله ﷺ عن بيع الثمرة أو النخل حتى يبدو صلاحه فقيل لابن عمر ما صلاحه قال تذهب عاهته