Q. Can a woman travel with her sister’s son-in-law as her Mahram for Umrah or Hajj?
A. It is not permissible for a woman to travel with her sister’s son-in-law as a Mahram for Umrah or Hajj as he is a non-Mahram (stranger) to her.
Allah Ta’ala Knows Best
Mufti Ismaeel Bassa
This answer was collected from TheMufti.com, which is a fatwa portal managed by Mufti Ismaeel Bassa from South Africa.