فَإِن لَّمْ تَعْلَمُواْ ءَابَاءَهُمْ فَإِخوَانُكُمْ فِى الدِّينِ وَمَوَلِيكُمْ
(But if you know not their father's then they are your brothers in the religion and Mawalikum (your freed servants).) Here Allah commands that adopted sons should be given back their fathers' names, if they are known; if they are not known, then they should be called brothers in faith or freed servants, to compensate for not knowing what their real lineage is. When the Messenger of Allah left Makkah after performing his `Umrat Al-Qada', the daughter of Hamzah, may Allah be pleased with her, started following him, calling, â€O uncle, O uncle!'' `Ali took her and said to Fatimah, may Allah be pleased with her, â€Take care of your uncle's daughter,'' so she picked her up. `Ali, Zayd and Ja`far -- may Allah be pleased with them -- disputed over of which of them was going to take care of her, and each of them gave his reasons. `Ali said, â€I have more right, because she is the daughter of my paternal uncle.'' Zayd said, â€She is the daughter of my brother.'' Ja`far bin Abi Talib said: â€She is the daughter of my paternal uncle and I am married to her maternal aunt -- meaning Asma' bint `Umays.'' The Prophet ruled that she should stay with her maternal aunt, and said: