Q. Muhtaram Mufti Saheb. Will it be permissible for a person to marry his daughter in law’s sister JazaakAllah
A. It is permissible for a man/father to marry his son’s sister-in-law/daughter-in-law’s sister. (Shaami 3/31) There is no prohibition in this regard.
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.