What happens regarding the undeliverable portion if the contract is considered dissolved automatically upon the initial impossibility of delivery?

Chapter on Guaranteed Salaf (Advance Payment) for a Specified Term

Al-Mughni

Book of Sales

Book 12 · Issue 4 · Bab 6

Open in Qurani

Primary text

If the dissolution is established automatically upon the initial impossibility of delivery, the contract dissolves only regarding the missing portion, as a defect arising in part of the contracted item does not necessitate the nullification of the whole. The buyer retains the option to dissolve the contract concerning the existing portion, as established in the primary view.