I roto i te 1918, i marenatia Jinnah tona wahine tuarua Rattanbai Petit ("Ruttie"), 24 tau tona taitamariki. Ko ia te tamahine taitamariki o tona hoa Sir Dinshaw Petit, a ko te wahi o te elite Parsi hapu o Bombay. He nui te ātete ki te faaipoiporaa i te hapu o Rattanbai me te hapori Parsi, me te i etahi rangatira whakapono Muslim. Rattanbai whakahe tona hapu, me te ingoa tahuri ki Ihirama, te tango (ahakoa e kore e whakamahi) te ingoa Maryam Jinnah, hua i roto i te estrangement pūmau i tona hapu, me te hapori Parsi. noho te tokorua i South Court Mansion i Bombay, a haere pinepine puta noa i India me Europe. whanau te tamaiti anake o te tokorua, Dina, i runga i 15 1919. i whanau i runga i 15 August 1929. i te tokorua Hindu ki te matenga o Ruttie i mua, a muri iho Fatima Jinnah o tuahine, a ka titiro i runga i tona whanau Parsi o Bombay.
Ko te whānau o Rattanbai