حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا مَالِكُ بْنُ أَنَسٍ، قَالَ حَدَّثَنِي نَافِعٌ، عَنِ ابْنِ عُمَرَ، أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ قَالَ ‏"‏ مَنِ اشْتَرَى نَخْلاً قَدْ أُبِّرَتْ فَثَمَرَتُهَا لِلْبَائِعِ إِلاَّ أَنْ يَشْتَرِطَ الْمُبْتَاعُ ‏"‏ ‏.‏

It was narrated from Ibn 'Umar that the Messenger of Allah (PBUH) said: "Whoever buys a palm tree that has been pollinated, its fruits belong to the seller, unless the purchaser stipulated a condition." (Sahih) Another chain from Ibn 'Umar, from the Prophet (PBUH), with similar wording. Translation Not Available

Book Ref: Sunan Ibn Majah Book 12 Hadith 2210
Web Ref:  Sunan Ibn Majah Vol 3 Book 12 Hadith 2210