"Whoever buys a date-palm tree after it has been pollinated, its fruits belong to the seller, unless the purchaser has stipulated otherwise. And whoever buys a slave who has wealth, his wealth belongs to the seller, unless the purchaser has stipulated otherwise. "(sahih) (Using translation from Nasāʾī 4636)  

عَنِ النَّبِيِّ ﷺ قَالَ «مَنِ ابْتَاعَ نَخْلًا بَعْدَ أَنْ تُؤَبَّرَ فَثَمَرَتُهَا لِلْبَائِعِ إِلَّا أَنْ يَشْتَرِطَ الْمُبْتَاعُ وَمَنْ بَاعَ عَبْدًا وَلَهُ مَالٌ فَمَالُهُ لِلْبَائِعِ إِلَّا أَنْ يَشْتَرِطَ الْمُبْتَاعُ»