Opening a mosque next to a mosque for the Sufis

Question:
He says: Honorable Shaykh, may Allah grant you success. This is a questioner from Britain who says: We purchased a building six months ago with the intention of converting it into a mosque, but we have not opened it yet. Then, last week, a group of Sufis came and rented a building directly next to ours, and they put up a sign announcing that they would open a mosque in this place. Now we want to open our mosque, but after consulting the scholars, what is your advice to us in this matter?

Answer:
It is not permissible to open two mosques in one place. You preceded them to the location, so you have the right to complain to the authorities there to prevent them. You preceded them to this place, so you have more right to it. If they want to pray with you, let them pray; otherwise, they should go to a distant place. Yes. And this is not permissible. This is called the Mosque of Harm (Masjid al-Dirar). This is it. Yes.