My sister in law (sali/wife’s sister) is widow; I like to do nikah with her. Is this possible? My wife is living with me. Please, advise in this matter.

Answered according to Hanafi Fiqh by

بسم الله الرحمن الرحيم

(Fatwa: 1107/846/D=9/1434)

It is unlawful to marry sali (wife’s sister) while wife is in nikah. Combining two sisters in nikah is forbidden by the Quran.

Allah knows Best!

Darul Ifta,
Darul Uloom Deoband