ادْعُوهُمْ لِآبَائِهِمْ هُوَ أَقْسَطُ عِندَ اللَّهِ فَإِن لَّمْ تَعْلَمُوا آبَاءَهُمْ فَإِخْوَانُكُمْ فِي الدِّينِ وَمَوَالِيكُمْ وَلَيْسَ عَلَيْكُمْ جُنَاحٌ فِيمَا أَخْطَأْتُم بِهِ وَلَكِن مَّا تَعَمَّدَتْ قُلُوبُكُمْ وَكَانَ اللَّهُ غَفُورًا رَّحِيمًا
Call them after their fathers. That is more just with Allah. If you do not know their fathers, then they are your brethren in the faith and your kinsmen. Excepting what your hearts may intend deliberately, there will be no sin upon you for any mistake that you may make therein. And Allah is all-forgiving, all-merciful.
Agha Ali Puya Commentary
Commentary on Quran 33:5
[Pooya/Ali Commentary 33:5] Call the adopted sons by their natural fathers and not by those who have adopted them which corresponds with truth and reality. It is better to call them brothers in faith or friends, because brotherhood is used in a wider sense than fatherhood and is not likely to be misunderstood. Ummi Salima daughter of Abi Ummya.