The Messenger of Allah ﷺ said, "Do not sell fruit until its ripeness becomes evident."
حدثنا يزيد أخبرنا يحيى بن سعيد عن نافع
قال رسول الله ﷺ لا تبايعوا الثمر حتى يبدو صلاحه
No references are available.
Its isnad is sahih, and it is a repetition of 5445.