Answer
Wa `alaykum As-Salamu waRahmatullahi wa Barakatuh.
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
The mother remains a mahram for her daughter’s husband even if he divorces her daughter.
Responding to your question, Dr. Salah Al-Sawy, President of the Shari`ah Academy and the Secretary General for the Assembly of Muslim Jurists in America, states:
The wife’s mother becoming mahram is a permanent status that has nothing to do with the continuation of the marriage or its end. She (i.e. the mother) remains a mahram for her daughter’s husband even if he divorces her daughter.
Allah Almighty knows best.
Editor’s note: This fatwa is from Ask the Scholar’s archive and was originally published at an earlier date.
Source: amjaonline.org