What is the oldest written source in this country that mentions this right?

Qatar

Under article 93 of Qatar’s Constitution the President is elected via secret ballot by the majority of votes from attending members of the Council. Qatar is not a democracy and therefore citizens have not traditionally had the right to vote for political officials. (Constitute Project, “ Qatar’s Constitution of 2003”).

Voting Rights and Suffrage · Country sources (all rights) · Years mentioned: 2003 · Last edited 2022-12-28 · Edit on GitHub