The Book of Transactions
21/8. Chapter:
It is invalid to sell goods before taking possession of them
Sahih Muslim
حَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى، أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ، حَدَّثَنِي عُمَرُ بْنُ مُحَمَّدٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَنِ اشْتَرَى طَعَامًا فَلاَ يَبِعْهُ حَتَّى يَسْتَوْفِيَهُ وَيَقْبِضَهُ " .
Ibn 'Umar (Allah be pleased with them) reported Allah's Messenger (ﷺ) as saying: He who bought foodgrain should not sell it until he had taken full possession of it (after measuring it).
Reference : Sahih Muslim 1526cIn-book reference : Book 21, Hadith 43USC-MSA web (English) reference : Book 10, Hadith 3647