Does the lease contract for a wet nurse terminate upon her death?

Primary text

The lease contract for a wet nurse is dissolved upon her death because the benefit (manfa'ah) ceases with the perishing of its subject matter. The deceased wet nurse's estate is liable for the agreed-upon wage for the duration of the child's nursing period, as this obligation is analogous to a debt. This view is supported by the reasoning that the subject of the contract has perished, similar to the case of a hired animal that perishes.