Is it permissible for those living in a country where only Sufi mosques exist to establish hidden places for learning the creed?

Question:
May Allah reward you. Honorable Shaykh, a questioner says: We are in a land where there are only mosques for the Sufis and the corrupt, so is it permissible for us in that case to designate hidden places where we seek knowledge and discuss the creed?

Answer:
If the matter has reached the point that you are being persecuted, and you are unable to build a mosque or prepare a place where you can pray and withdraw from the corrupt, and the matter has reached the point that you are prevented from doing so or threatened, then there is no harm. The Prophet (peace and blessings be upon him) used to hide in the house of al-Arqam ibn Abi al-Arqam in the early stages of his mission, along with his companions, in a secret call, until many people embraced Islam, including 'Umar and Hamzah, the Prophet's (peace and blessings be upon him) uncle. At that point, they came out of the house of al-Arqam and began going to the House and circumambulating it, because they were under protection. So if the matter reaches the point that Muslims are being persecuted and are not allowed to prepare a mosque or a place for worship, then they keep this secret in a hidden place, fleeing for the sake of their religion and protecting their religion.
As for people living in the lands of the Muslims, in the Kingdom, and praise be to Allah, the land of the two Holy Sanctuaries, where no one is being persecuted and no one is prevented from the mosques or from building mosques, their hiding in these lands is the place of accusation and the place of fear. Yes.