I adopted a foundling from the hospital and ignorantly registered his name along with my children on my ID card

Q: I adopted an illegitimate child from the hospital and ignorantly registered his name along with my children on my ID card. I named him `Abdul-Rahman and my wife suckled him. Later, I learned that what I did was contrary to Allah's Shari`ah and the Sunnah of our Prophet (peace be upon him). Please, clarify for me the status of this son. What should I do in order to correct (Part No. 11; Page No. 259) what I have done? I should mention that I do not want to renounce him, because I consider him one of my children and he is now 16 years old.

A: The aforementioned child is your son through breastfeeding ties if your wife breast-fed him, during the first two years, five times or more. However, it is not permissible to register him along with your children as being your son. It is obligatory on you to go to the authority concerned and have his name removed from your ID card and have an ID card issued for him. This may include `Abd such as `Abdullah, `Abdul-Rahman or the like.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.