My wife lives with her sister and her husband; is it permissible for my wife to travel with them?

Question:
May Allah reward you. Honorable Shaykh, this questioner says: I am a student at Umm al-Qura University in Makkah, and I have left my wife in my home country, which is a Muslim country. She is living with her sister and her husband, but they are going to another city about 200 kilometers away. Is it permissible for my wife to go with them, even though she has a small son?

Answer:
It is not permissible for a woman to travel except with a mahram (a relative one may not marry). The Messenger (peace and blessings be upon him) said: . This is a general ruling. You are required to go and accompany your wife. You should either bring her to you, or travel with her and them, and then return to your work. As for her traveling without a mahram, this is not permissible. Yes.