Sahih al-Bukhari 2183
Sahih al-Bukhari · Book 34: Sales and Trade · The sale called Al-Muzabana; which is the sale of dried dates for fresh ones (that are still on the trees), and dried grapes for fresh grapes and the sale called Al-‘Araya (i.e., the selling of ripe fresh date, still over the palms, by means of estimation, for dry dates).
Narrated `Abdullah bin `Umar:
حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ ، حَدَّثَنَا اللَّيْثُ ، عَنْ عُقَيْلٍ ، عَنِ ابْنِ شِهَابٍ ، أَخْبَرَنِي سَالِمُ بْنُ عَبْدِ اللَّهِ ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ تَبِيعُوا الثَّمَرَ حَتَّى يَبْدُوَ صَلاَحُهُ، وَلاَ تَبِيعُوا الثَّمَرَ بِالتَّمْرِ " قَالَ سَالِمٌ وَأَخْبَرَنِي عَبْدُ اللَّهِ ، عَنْ زَيْدِ بْنِ ثَابِتٍ ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم رَخَّصَ بَعْدَ ذَلِكَ فِي بَيْعِ الْعَرِيَّةِ بِالرُّطَبِ أَوْ بِالتَّمْرِ، وَلَمْ يُرَخِّصْ فِي غَيْرِهِ .
Allah's Messenger (ﷺ) said, "Do not sell fruits of dates until they become free from all the dangers of being spoilt or blighted; and do not sell fresh dates for dry dates." Narrated Salim and `Abdullah from Zaid bin Habit' "Later on Allah's Messenger (ﷺ) permitted the selling of ripe fruits on trees for fresh dates or dried dates in Bai'-al-'Araya, and did not allow it for any other kind of sale."