Question 10: A relative of mine, my uncle Hamad, adopted a Laqeet (foundling), brought him up, educated him, and treated him well. He gave him the name (Y.H.SH.) through his Ijtihaad (personal reasoning) and kindness. He then died in Zubayr city and he did not have any children to inherit him. The boy is now an adult and is attending the Zhahran Technical Institute. The relatives have discussed the possibility of changing the boy’s name; some of them think that his name should be changed while others have paid no attention to the whole matter. Fearing that the lineage could be confused and the inheritance might be distributed improperly, I hope that Your Eminence will give me a Fatwaa (legal opinion issued by a qualified Muslim scholar) regarding the ruling of the Sharee‘ah (Islaamic law) on the issue, so we can act upon it.
Answer: According to the Sharee‘ah, it is not permissible for a person who adopts a foundling to pass on the family name to them, whereby the foundling is given the name of the foster father and is ascribed to him as a child to its own father or tribe, as described in the question… read more here.