When the disbelievers of Makkah planned the arrest and assassination of the Holy Prophet (sas), Allah the Almighty permitted the Holy Prophet (sas) to migrate. Earlier, many Muslims had migrated to Abyssinia [Ethiopia] and at last, the day arrived when the Holy Prophets as migrated to Madinah with Hazrat Abu Bakr Siddique (ra). Because of the situation at that time, the Holy Prophet (sas) could not risk taking Hazrat Umme Kulsoom (ra) and Hazrat Fatimah (ra) with him, so they stayed in Makkah with their new mother, Hazrat Saudah (ra). Hazrat Umme Kulsoom (ra) and Hazrat Fatimah (ra) spent this time with great resilience and bravery.
Soon after the Holy Prophet (sas) had migrated, he sent Hazrat Abu Raafi (ra) and Hazrat Zaid bin Harisah (ra) to Makkah, to bring his esteemed wife, Hazrat Saudah, and his beloved daughters to Madinah.
To get to Madinah Hazrat Umme Kulsoom (ra) crossed the desert with the help of Hazrat Abu Raafi (ra). She had never undertaken such a long and difficult journey like this one in her life, but she braved it.
Meanwhile, in Madinah, the Holy Prophet (sas) was busy in the construction of the mosque known as Masjid an-Nabawi. It was wise to build the home of the Holy Prophet (sas) within the perimeter of Masjid an-Nabawi so that his family could live with him as well. As the construction of their home was not complete, upon their arrival in Madinah, the family of the Holy Prophet (sas) stayed in the house of a companion Hazrat Haris bin Nauman (ra). Hazrat Umme Kulsoom (ra), Hazrat Fatimah (ra) and Hazrat Saudah (ra) stayed there for some time. When the construction work was completed, all three of them moved to their home in Masjid an-Nabawi.
In the second year of the Hijrah, the disbelievers of Makkah attacked the Muslims. The battle took place in the field of Badr. Some great companions of the Holy Prophet (sas) were martyred during this battle. At the time of the Battle of Badr, Hazrat Ruqayyah (ra) (who was now married to Hazrat Usman (ra)) was extremely ill. The Holy Prophet (sas) instructed Hazrat Usman (ra) to stay behind in Madinah and look after his wife. Hazrat Usman (ra) took great care of her, but she could not regain her health. Hazrat Ruqayyah (ra) passed away on the day the battle began.