no. 530 for the year 2010 which includes the following:
What is the ruling in Islamic law on a person who names his son "Rasul-Allah" (the Messenger of Allah)?

 

It is impermissible to name one's son "Rasul-Allah" since it gives a false and misleading impression contrary to the categorically established religious doctrine that there is no Prophet after Mohammed.

Allah the Almighty knows best.