Who is the one addressed by the command to expel the polytheists from the Arabian Peninsula?

Question:
He says: Honorable Shaykh, may Allah grant you success. Regarding the saying of the Prophet (peace and blessings be upon him) , is it the Peninsula, or what does "the Peninsula" mean? And is this ruling for the ruler, or for the people without the ruler's permission? I ask for clarification, may Allah preserve you.

Answer:
This concerns the ruler, and you should not intervene in it, because this is an address to the ruler. The Companions did not expel the Jews and the Christians; rather, the Caliph 'Umar ibn al-Khattab expelled them when Islam became strong. So this is up to the ruler. And he asks about the Peninsula and the boundaries of the Peninsula. Are you confused about this? Yes.