It is narrated from Hazrat Zaid bin Thabit (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Do not sell the fruit until it has fully ripened.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 21615
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد حسن