´It was narrated from Ibn 'Umar that the Prophet said:` "Any man who pollinates a date-palm tree then sells it, the fruits of the tree are for the one who pollinated it, unless the purchaser stipulated otherwise."
Hadith Referenceسنن نسائي / كتاب البيوع / 4639
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه