(salam) We sunnis believe that the Prophet (pbuh) had 4 Daughter, Umm Kulthoom (ra) Zainab (ra) Ruqayyah (ra) and Fatimah (ra) . But i have heard some shia deny the first 3 as his daughters adn that the Prophet had only one daughter. Is it true? And why arent these daughters among the ahlelbayt?