Ruling 2266
If the owner dies, the tree tending contract is not nullified. Instead, his heirs take his place.
-Ayatullah Sistani, Practical Laws of Islam, Tree Tending Contract (Musaqah) and Tree Planting Contract (Mugharasah)
Tree Tending Contract and Tree Planting Contract: Death of the Owner
Practical Laws of Islam as per the teachings of Ayatullah Sistani
