Tracing back Muslim daughters to other than their non-Muslim father
17-12-2012 | IslamWeb
Question:
Salam May write the following for your kind and valuable advice please.. 1. We living in India and that is not an Islamic country. 2. One of my brothers had got married to a Hindu woman who had embraced Islam along with her two daughters. 3. Presently these two daughters are living with their mother in sponsorship of my brother and masha allah they are Muslima now. 4. In order to avoid any kind of problem to these girls in future from Hindu Hardliners or they may face problem in marriages in Muslim community, my brother has given his name as a father to these two girls. 5. The real father of these girls is still Hindu so we don’t want his name to be given as father. My question is that can he give his name a father to these girls under any circumstances?; if not then what name we can give to these girls as father. Will Abdullah be ok… .kindly guide us….. thanks jazak allah respects, mohammed anayatullah rumi
Answer:
All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
Islam forbade us from being traced back to other than our real father and we have already discussed this in Fataawa 133682 and 82371.
Therefore, in principle it is forbidden to trace back those two daughters to other than their real father. However, if there is a preponderant benefit, like repelling a definite harm or what is predominantly thought to be a harm which necessitates tracing back each of the two daughters to other than her real father, then she should be given an indefinite father's name, i.e. without intending to trace her back to a particular person, while preserving her real lineage by having witnesses on it, for instance.
In any case, a Muslim should be intelligent and wise so that he would not subject himself to being questioned by the authorities about this matter. Sa’d ibn Abi Waqqaas 
said that the Prophet 
said: "Beware of matters that make you seek excuses.” [Al-Bayhaqi and Al-Haakim who graded it Saheeh (sound)]
Allaah Knows best.