The Ruling on Treaties with Polytheists and Expelling Them from the Arabian Peninsula

The questioner:
And his saying (peace and blessings be upon him), “Whoever has a treaty with the Messenger of Allah (peace and blessings be upon him) is safe until the time of the Farewell Pilgrimage.” Is there evidence in this to be acted upon, like the saying of the Prophet (peace and blessings be upon him), “Two religions will remain in the Arabian Peninsula,” and his saying (peace and blessings be upon him), “Expel the Jews and the Christians from the Arabian Peninsula”?

The Shaykh:
This is specific. Whoever has a treaty remains safe until the end of his treaty. The Prophet (peace and blessings be upon him) does not break a treaty. And whoever does not have a treaty has a period of four months; if he does not embrace Islam, he will be killed.

The presenter:
Meaning, after what is in the text regarding the polytheists, this is the summary.

The Shaykh:
It is obligatory to expel them from the peninsula, and no one other than a Muslim is to remain in it. So the Messenger (peace and blessings be upon him) [ruled] that upon his death, no one other than a Muslim is to remain in it.

The presenter:
So we make the expelling one of the proofs.

The Shaykh:
Yes.