"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)
Sunan an-Nasa'i Book 44, Hadith 188
← Previous Hadith "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."

Sunan an-Nasa'i Book 44, Hadith 187 Next Hadith → "I was with the Prophet on a journey, and my camel got tired. I thought I wanted to let it go, but the Messenger of "Allah met me and prayed for it (the camel) and hit it. Then it started to run like never before. He said: 'Sell it to me for one Uwqyah.' I said" 'No.' He said: 'Sell it to me.' So I sold it to him for one Uwqiyah but stipulated an exception, to ride it until we reached al-Madinah. When we reached Al-Medina, I brought the camel to him and asked him for its price, then I went back. He sent word to me saying; 'Do you think I bargained with you to take your camel?' Take your camel and your Dirhams.

Sunan an-Nasa'i Book 44, Hadith 189