The Ruling on Disbelievers Entering the Arabian Peninsula for the Sake of Benefit

Question:
Honorable Shaykh, is it permissible to allow the protection of the entry of disbelievers into the Arabian Peninsula, which the Prophet (peace and blessings be upon him) forbade them from entering, on the pretext of enlightening them with the truth and making them hear its beauty? And is it to be understood that this ruling is derived from the ruling of prohibition, knowing that many Muslims argue with this?

Answer:
It is permissible for them to enter for the sake of benefit. Whether it is so that they may hear the word of Allah, hear about Islam, and verify it if they request it, then they are allowed to enter, because this is for a great benefit. Or if they come with an embassy or a message to the rulers from their countries, because this is for the benefit of the Muslims. Or if they come with trade, bringing trade goods and marketing them in the lands of the Muslims, because this is for the benefit of the Muslims.
Or if they come for work that the Muslims have hired them for, which they alone can do well, and which is for the benefit of the Muslims. All of this is permitted because it is for the benefit of the Muslims. What is forbidden is that they enter, settle down, and own property in the Arabian Peninsula while they remain in their disbelief. As for their coming for the sake of negotiations, trade and industrial contracts, and the like, these are matters of the Muslims' interests, so they are permitted to enter for these purposes. Because the polytheists used to come to the Prophet (peace and blessings be upon him) in Madinah and enter upon him in the mosque, and they would negotiate with him and bring him messages from the kings of the disbelievers, and the Messenger (peace and blessings be upon him) would permit them. All of this was for the interests of the Muslims. It is not the case that the Arabian Peninsula has a wall built around it and it is said that no one may enter it. How would the call to Islam be? How would the interests of the Muslims be? How would the interests of the Muslims be established? Their trade and their work?
Yes, this is what is reasonable. What is forbidden is that they come and settle in it without an invitation, without a contract of safety, and without a benefit for the Muslims, that they sit in it, own property, and become among its people. This is what is forbidden. Yes.