Which one of the following is the leading case under the Mohammedan Law on widow's right to retain…

Maina Bibi v Chaudhri Vakil Ahmed concerns a Muslim widow lawfully in possession of her husband's estate in satisfaction of unpaid dower. She can retain that possession until payment, but retention does not confer ownership or an unrestricted power to alienate the other heirs' property. Sadiq Ali Khan concerns delivery of possession in a gift, and Shah Bano concerns maintenance.