"Do not sell fruits until they have ripened." And he forbade (both) the seller and the purchaser (to engage in such a transaction). (Using translation from Ibn Mājah 2214)  

عَنْ رَسُولِ اللهِ ﷺ قَالَ «لَا تَبِيعُوا الثَّمَرَ حَتَّى يَبْدُوَ صَلَاحُهُ» نَهَى الْبَائِعَ وَالْمُشْتَرِيَ  

[Machine] The Messenger of Allah ﷺ prohibited selling fruit until its goodness is apparent. Yunus ibn 'Abd al-A'la and al-Harith ibn Muskin narrated it to me. I heard it from Ibn Wahb, who said that Yunus narrated it from Ibn Shihab, who said that Sa'id and Abu Salamah told him that Abu Hurairah said that the Messenger of Allah ﷺ said, "Do not sell fruit until its goodness is apparent, and do not sell fruit with dates." Ibn Shihab said that Salim ibn 'Abdullah narrated it from his father that the Messenger of Allah ﷺ prohibited something similar.  

أَنَّ رَسُولَ اللهِ ﷺ نَهَى عَنْ بَيْعِ الثَّمَرِ حَتَّى يَبْدُوَ صَلَاحُهُ 6067 أَخْبَرَنِي يُونُسُ بْنُ عَبْدِ الْأَعْلَى وَالْحَارِثُ بْنُ مِسْكِينٍ قِرَاءَةً عَلَيْهِ وَأَنَا أَسْمَعُ عَنِ ابْنِ وَهْبٍ قَالَ أَخْبَرَنِي يُونُسُ عَنِ ابْنِ شِهَابٍ قَالَ حَدَّثَنِي سَعِيدٌ وَأَبُو سَلَمَةَ أَنَّ أَبَا هُرَيْرَةَ قَالَ قَالَ رَسُولُ اللهِ ﷺ «لَا تَبَايَعُوا الثَّمَرَ حَتَّى يَبْدُوَ صَلَاحُهَا وَلَا تَتَبَايَعُوا الثَّمَرَ بِالتَّمْرِ» قَالَ ابْنُ شِهَابٍ حَدَّثَنِي سَالِمُ بْنُ عَبْدِ اللهِ عَنْ أَبِيهِ أَنَّ رَسُولَ اللهِ ﷺ نَهَى عَنْ مِثْلِهِ سَوَاءً  

"The Messenger of Allah stood up among us ad said: 'Do not sell fruits until their condition is known."" (Using translation from Nasāʾī 4522)  

سَمِعْتُ عَبْدَ اللهِ بْنَ عُمَرَ يَقُولُ قَامَ فِينَا رَسُولُ اللهِ ﷺ فَقَالَ «لَا تَبِيعُوا الثَّمَرَ حَتَّى يَبْدُوَ صَلَاحُهُ»  

"I heard Jabir bin 'Abdullah (narrate) from the Prophet that he forbade Mukhabarah, Muzabanah and Muhaqalah, an (he forbade) selling fruits until their condition is known, an that they should only sold for Dinars and Dirhams, but he granted a concession regarding the sale of Araya: (Using translation from Nasāʾī 4523)  

عَنِ النَّبِيِّ ﷺ أَنَّهُ نَهَى عَنِ الْمُخَابَرَةِ وَالْمُزَابَنَةِ وَالْمُحَاقَلَةِ وَأَنْ يُبَاعَ الثَّمَرُ حَتَّى يَبْدُوَ صَلَاحُهُ وَأَنْ يُبَاعَ إِلَّا بِالدِّينَارِ وَالدِّرْهَمِ وَرَخَّصَ فِي الْعَرَايَا  

the Prophet forbade Mukhabarah, Muzabanah and Muhaqalah, and selling fruits until they were fit to eat, except in the case f 'Aray. (Using translation from Nasāʾī 4524)  

أَنَّ النَّبِيَّ ﷺ نَهَى عَنِ الْمُخَابَرَةِ وَالْمُزَابَنَةِ وَالْمُحَاقَلَةِ وَعَنْ بَيْعِ الثَّمَرِ حَتَّى يُطْعَمَ إِلَّا الْعَرَايَا  

"the Messenger of Allah forbade selling the fruit of date palms until they are fit to eat." (Using translation from Nasāʾī 4525)  

«نَهَى رَسُولُ اللهِ ﷺ عَنْ بَيْعِ النَّخْلِ حَتَّى تُطْعَمَ»