Is Hajj permissible without a mahram?

Question:
May Allah reward you. Honorable Shaykh, this questioner says: Is it permissible to perform Hajj without a mahram?

Answer:
No, it is not permissible for a woman to perform Hajj without a mahram, because the Prophet (peace and blessings be upon him) said: It is not permissible for a woman who believes in Allah and the Last Day to travel except with a mahram. When a man came wanting to go out for jihad and to gain from the expedition that goes out in the path of Allah, and he informed the Prophet (peace and blessings be upon him) that his wife had gone out for Hajj, he said: Go back, is there anyone with your wife? He sent him back from the expedition to perform Hajj with his wife. It is not permissible. If a woman does not find a way out, she should wait, for Allah will make a way out for her. If a way out does not become easy for her and she is deprived of it, then she should appoint someone to perform Hajj on her behalf.