Requirement to issue reasoned decision in the last instance
Pakistan
Answer
Yes
Source
The Pakistan Supreme Court Rules
PART-II APPELLATE JURISDICTION. ORDER XII. CIVILAPPEALS UNDER ARTICLE 185(2) (d) (e) and (f) OF THE CONSTITUTION.
6. Where the Court, after hearing an appeal,decides to reserve its judgment therein, the Registrar shall notify the partiesconcerned of the day appointed by the Court for the announcement of thejudgment.
Source: