(23) باب فِي بَيْعِ الثِّمَارِ قَبْلَ أَنْ يَبْدُوَ صَلاَحُهَا
Narrated Ibn 'Umar:
The Messenger of Allah (ﷺ) forbade selling palm-trees till the dates began to ripen, and ears of corn till they were white and were safe from blight, forbidding it both to the buyer and to the seller.
Reference: Sunan Abi Dawud 3368
In-book reference: Book 23, Hadith 43
English translation: Book 22, Hadith 3362