بُلُوغُ الْمَرَامِ
Bulugh al-Maram 851
Business Transactions
وَعَنْ أَنَسِ بْنِ مَالِكٍ - رضى الله عنه - { أَنَّ اَلنَّبِيَّ - صلى الله عليه وسلم -نَهَى عَنْ بَيْعِ اَلْعِنَبِ حَتَّى يَسْوَدَّ, وَعَنْ بَيْعِ اَلْحَبِّ حَتَّى يَشْتَدَّ } رَوَاهُ اَلْخَمْسَةُ, إِلَّا النَّسَائِيَّ, وَصَحَّحَهُ اِبْنُ حِبَّانَ, وَالْحَاكِمُ [1] .
Narrated Anas bin Malik (RA): The Prophet (ﷺ) forbade the sale of grapes till they become black (i.e. ripe) and the sale of grain till it becomes hard (i.e. ripe). [Reported by al-Khamsah except an-Nasa'i and graded Sahih (authentic) by Ibn Hibban and al-Hakim].
Sunnah.com reference: Book 7, Hadith 87