Sahih Muslim 3903
صحيح مسلم#3903SahihIbn Umar (Allah be pleased with them) reported Allah's Apostle (ﷺ) as saying:Whosoever grafts the tree and then sells its roots, its fruit will belong to one who grafts it except when provision is laid down by the buyer
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 21:102