If pollinated date-palms are sold and nothing is mentioned (in the contract) about their fruits, the fruits will go to the person who has pollinated them, and so will be the case with the slave and the cultivator. Nafi' mentioned those three things.
Sahih al-Bukhari Book 34, Hadith 149
← Previous Hadith Allah's Messenger (ﷺ) appointed somebody as a governor of Khaibar. That governor brought to him an excellent kind of dates (from Khaibar). The Prophet (ﷺ) asked, "Are all the dates of Khaibar like this?" He replied, "By Allah, no, O Allah's Messenger (ﷺ)! But we barter one Sa of this (type of dates) for two Sas of dates of ours and two Sas of it for three of ours." Allah's Messenger (ﷺ) said, "Do not do so (as that is a kind of usury) but sell the mixed dates (of inferior quality) for money, and then buy good dates with that money."

Sahih al-Bukhari Book 34, Hadith 148 Next Hadith → Allah's Messenger (ﷺ) said, "If somebody sells pollinated date palms, the fruits will be for the seller unless the buyer stipulates that they will be for himself (and the seller agrees).

Sahih al-Bukhari Book 34, Hadith 150